{"title":"Solar Attic Fans with Remote Thermostat Solar Exhaust Fan for home","description":"\u003cdiv data-page-id=\"QPhxdT8CJozrHgxqriacJI8SnPe\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-BVe3dWbVmoqONgx4b0Acaaf8n3b\"\u003eCompare our selection of top-rated solar attic fans based on performance, quietness, and durability. Read verified reviews and ratings from homeowners to find the best model for your home. Enjoy fast, free shipping on all orders.\u003c\/div\u003e\n\u003c\/div\u003e","products":[{"product_id":"55w-solar-attic-fan-with-65ft-remote","title":"12\" Solar Attic Vent Fan -55W","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e \u003cmeta content=\"width=device-width, initial-scale=1.0\" name=\"viewport\"\u003e\u003clink href=\"https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/font-awesome\/6.4.0\/css\/all.min.css\" rel=\"stylesheet\"\u003e \u003clink rel=\"stylesheet\" href=\"https:\/\/fonts.googleapis.com\/css2?family=Montserrat:wght@500;600;700;800\u0026amp;family=Open+Sans:wght@400;500;600;700\u0026amp;display=swap\"\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n        :root {\n            --primary: #2c5282;\n            --accent: #e67e22;\n            --accent-light: #fad7a0;\n            --accent-dark: #c45a10;\n            --secondary: #3498db;\n            --light: #f7fafc;\n            --dark: #2c3e50;\n            --gradient-primary: linear-gradient(135deg, var(--primary) 0%, #4a7cad 100%);\n            --gradient-accent: linear-gradient(135deg, var(--accent) 0%, #f39c12 100%);\n            --gradient-secondary: linear-gradient(135deg, var(--secondary) 0%, #5dade2 100%);\n        }\n        * {\n            margin: 0;\n            padding: 0;\n            box-sizing: border-box;\n            font-family: 'Open Sans', sans-serif;\n        }\n        body {\n            color: #4a5568;\n            line-height: 1.5;\n            background-color: #f0f4f8;\n            overflow-x: hidden;\n        }\n        h1, h2, h3, h4 {\n            font-family: 'Montserrat', sans-serif;\n            font-weight: 700;\n            color: var(--dark);\n        }\n        p {\n            font-size: 0.95rem;\n            color: #2d3748;\n            margin-bottom: 5px;\n        }\n        .container {\n            max-width: 1200px;\n            margin: 0 auto;\n            padding: 15px;\n        }\n        .content-section {\n            margin: 20px 0;\n            padding: 10px 0;\n        }\n        .section-title {\n            text-align: center;\n            font-size: 1.8rem;\n            margin-bottom: 15px;\n            position: relative;\n            color: var(--primary);\n        }\n        .section-title::after {\n            content: '';\n            display: block;\n            width: 70px;\n            height: 3px;\n            background: var(--gradient-accent);\n            margin: 6px auto;\n            border-radius: 2px;\n        }\n        header {\n            background: var(--gradient-primary);\n            color: white;\n            text-align: center;\n            padding: 30px 20px 40px;\n            position: relative;\n            overflow: hidden;\n            margin-bottom: 10px;\n        }\n        .header-decor {\n            position: absolute;\n            top: 0;\n            left: 0;\n            width: 100%;\n            height: 100%;\n            overflow: hidden;\n            z-index: 1;\n        }\n        .circle {\n            position: absolute;\n            border-radius: 50%;\n            background: rgba(255, 255, 255, 0.1);\n        }\n        .circle-1 {\n            width: 300px;\n            height: 300px;\n            top: -100px;\n            right: -70px;\n        }\n        .circle-2 {\n            width: 200px;\n            height: 200px;\n            bottom: -60px;\n            left: -50px;\n        }\n        .header-content {\n            position: relative;\n            z-index: 2;\n            max-width: 900px;\n            margin: 0 auto;\n        }\n        .model {\n            font-size: 0.85rem;\n            text-transform: uppercase;\n            letter-spacing: 2px;\n            margin-bottom: 4px;\n            color: rgba(255, 255, 255, 0.9);\n            font-weight: 600;\n        }\n        header h1 {\n            font-size: 2rem;\n            color: white;\n            margin-bottom: 6px;\n            text-shadow: 0 2px 4px rgba(0,0,0,0.2);\n        }\n        .tagline {\n            font-size: 1.1rem;\n            max-width: 800px;\n            margin: 0 auto;\n            font-weight: 600;\n            color: rgba(255, 255, 255, 0.95);\n        }\n        .features-grid {\n            display: grid;\n            grid-template-columns: repeat(2, 1fr);\n            gap: 12px;\n            margin: 12px 0;\n        }\n        .feature-item {\n            background: white;\n            border-radius: 10px;\n            padding: 15px;\n            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.06);\n            transition: all 0.3s ease;\n            border: none;\n        }\n        .feature-item:hover {\n            transform: translateY(-3px);\n            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);\n        }\n        .feature-icon {\n            font-size: 1.8rem;\n            color: var(--accent);\n            margin-bottom: 8px;\n            text-align: center;\n        }\n        .feature-title {\n            font-size: 1.1rem;\n            margin-bottom: 8px;\n            color: var(--primary);\n            text-align: center;\n        }\n        .feature-content {\n            text-align: center;\n        }\n        .warranty-badge {\n            display: inline-block;\n            background: rgba(230, 126, 34, 0.12);\n            color: var(--accent-dark);\n            padding: 4px 12px;\n            border-radius: 20px;\n            font-weight: 600;\n            margin-top: 6px;\n            font-size: 0.85rem;\n        }\n        .thermostat-container {\n            background: white;\n            border-radius: 12px;\n            padding: 18px;\n            max-width: 1000px;\n            margin: 0 auto;\n            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.06);\n        }\n        .temp-graphic {\n            display: flex;\n            justify-content: space-between;\n            align-items: center;\n            height: 60px;\n            background: linear-gradient(to right, #3498db, #2ecc71, #e74c3c);\n            border-radius: 40px;\n            margin: 12px auto;\n            position: relative;\n            max-width: 900px;\n        }\n        .temp-marker {\n            position: absolute;\n            top: -25px;\n            font-weight: 700;\n            text-align: center;\n            min-width: 65px;\n            background: white;\n            color: var(--primary);\n            padding: 3px 8px;\n            border-radius: 15px;\n            box-shadow: 0 3px 8px rgba(0, 0, 0, 0.08);\n            font-size: 0.8rem;\n            z-index: 2;\n        }\n        .off-marker {\n            left: 25%;\n            transform: translateX(-50%);\n        }\n        .on-marker {\n            left: 75%;\n            transform: translateX(-50%);\n        }\n        .temp-indicator {\n            position: absolute;\n            top: 100%;\n            width: 2px;\n            height: 15px;\n            background: var(--primary);\n            border-radius: 1px;\n        }\n        .off-indicator {\n            left: 25%;\n        }\n        .on-indicator {\n            left: 75%;\n        }\n        .temp-label {\n            flex: 1;\n            text-align: center;\n            font-weight: 600;\n            color: white;\n            text-shadow: 0 1px 2px rgba(0,0,0,0.3);\n            padding: 0 8px;\n            font-size: 0.85rem;\n        }\n        .specs-container {\n            display: grid;\n            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));\n            gap: 12px;\n            margin: 15px 0;\n        }\n        .specs-table {\n            width: 100%;\n            border-collapse: collapse;\n            background: white;\n            border-radius: 10px;\n            overflow: hidden;\n            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.06);\n        }\n        .specs-table th, .specs-table td {\n            padding: 10px;\n            text-align: left;\n            border-bottom: 1px solid #edf2f7;\n        }\n        .specs-table tr:last-child th, \n        .specs-table tr:last-child td {\n            border-bottom: none;\n        }\n        .specs-table th {\n            background-color: #ebf8ff;\n            font-weight: 600;\n            color: var(--primary);\n            width: 40%;\n        }\n        .highlight {\n            color: var(--accent-dark);\n            font-weight: 700;\n        }\n        .mobile-specs-table {\n            display: none;\n            width: 100%;\n            border-collapse: collapse;\n            background: white;\n            border-radius: 10px;\n            overflow: hidden;\n            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.06);\n            margin: 15px 0;\n        }\n        .spec-download-btn-container {\n            text-align: center;\n            margin: 12px auto;\n        }\n        .spec-download-btn {\n            display: inline-flex;\n            align-items: center;\n            justify-content: center;\n            padding: 8px 18px;\n            background: var(--gradient-primary);\n            color: white;\n            border-radius: 40px;\n            text-decoration: none;\n            font-weight: 600;\n            font-size: 0.9rem;\n            box-shadow: 0 4px 10px rgba(44, 82, 130, 0.25);\n            transition: all 0.3s ease;\n            border: none;\n            cursor: pointer;\n            font-family: 'Montserrat', sans-serif;\n            gap: 6px;\n        }\n        .spec-download-btn:hover {\n            transform: translateY(-2px);\n            box-shadow: 0 6px 15px rgba(44, 82, 130, 0.35);\n            background: var(--gradient-secondary);\n        }\n        .spec-download-btn i {\n            font-size: 1em;\n        }\n        .power-container {\n            display: grid;\n            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));\n            gap: 15px;\n            max-width: 1000px;\n            margin: 0 auto;\n        }\n        .power-item {\n            background: white;\n            border-radius: 12px;\n            padding: 18px;\n            text-align: center;\n            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.06);\n            transition: all 0.3s ease;\n        }\n        .power-item:hover {\n            transform: translateY(-3px);\n            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);\n        }\n        .power-icon {\n            font-size: 2.2rem;\n            margin-bottom: 12px;\n        }\n        .day-power .power-icon {\n            color: #f39c12;\n        }\n        .night-power .power-icon {\n            color: #3498db;\n        }\n        .power-title {\n            font-size: 1.2rem;\n            margin-bottom: 8px;\n            color: var(--primary);\n        }\n        .installation-container {\n            display: grid;\n            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));\n            gap: 10px;\n            max-width: 1000px;\n            margin: 15px auto;\n        }\n        .install-item {\n            text-align: center;\n            padding: 12px;\n            background: white;\n            border-radius: 10px;\n            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.06);\n            transition: all 0.3s ease;\n        }\n        .install-item:hover {\n            transform: translateY(-3px);\n            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);\n        }\n        .install-icon {\n            font-size: 1.8rem;\n            color: var(--accent);\n            margin-bottom: 6px;\n        }\n        .install-title {\n            font-size: 1rem;\n            margin-bottom: 4px;\n            color: var(--primary);\n        }\n        .shipping-info {\n            background: white;\n            padding: 15px;\n            border-radius: 12px;\n            max-width: 550px;\n            margin: 0 auto;\n            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.06);\n            text-align: center;\n            border-top: 3px solid var(--accent);\n        }\n        .shipping-info h3 {\n            color: var(--primary);\n            font-size: 1.2rem;\n            margin-bottom: 8px;\n        }\n        .shipping-info h3 i {\n            color: var(--accent);\n            margin-right: 8px;\n        }\n        .shipping-info p {\n            font-size: 0.95rem;\n            margin: 3px 0;\n        }\n        ul {\n            margin: 6px 0;\n            padding-left: 20px;\n        }\n        li {\n            margin-bottom: 3px;\n            font-size: 0.9rem;\n        }\n        \n        \/* 视频模块样式 - 全屏显示 *\/\n        .video-section {\n            margin: 20px 0;\n            padding: 0;\n        }\n        \n        .video-container {\n            width: 100%;\n            max-width: 100%;\n            margin: 0;\n            padding: 0;\n        }\n        \n        .video-frame {\n            width: 100%;\n            height: 600px;\n            border: none;\n            border-radius: 0;\n            box-shadow: none;\n            display: block;\n        }\n        \n        .video-info {\n            background: white;\n            padding: 12px 15px;\n            margin-top: 0;\n            border-radius: 0 0 8px 8px;\n            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);\n        }\n        \n        .video-title {\n            font-size: 1.1rem;\n            font-weight: 600;\n            color: var(--primary);\n            margin-bottom: 4px;\n        }\n        \n        .video-subtitle {\n            font-size: 0.9rem;\n            color: #666;\n            display: flex;\n            align-items: center;\n            gap: 8px;\n        }\n        \n        .video-subtitle i {\n            color: var(--accent);\n        }\n        \n        @media (max-width: 992px) {\n            header h1 {\n                font-size: 1.8rem;\n            }\n            .tagline {\n                font-size: 1rem;\n            }\n            .section-title {\n                font-size: 1.5rem;\n                margin-bottom: 12px;\n            }\n            .temp-graphic {\n                height: 55px;\n                max-width: 95%;\n            }\n            .temp-marker {\n                font-size: 0.75rem;\n                min-width: 60px;\n                top: -22px;\n            }\n            \/* 平板端视频调整 *\/\n            .video-frame {\n                height: 500px;\n            }\n        }\n        \n        @media (max-width: 768px) {\n            .model {\n                font-size: 0.8rem;\n            }\n            header h1 {\n                font-size: 1.6rem;\n                margin-bottom: 4px;\n            }\n            .tagline {\n                font-size: 0.95rem;\n            }\n            .section-title {\n                font-size: 1.3rem;\n                margin-bottom: 10px;\n            }\n            .features-grid {\n                grid-template-columns: 1fr;\n                gap: 10px;\n                margin: 10px 0;\n            }\n            .specs-container {\n                display: none;\n            }\n            .mobile-specs-table {\n                display: table;\n            }\n            .power-container {\n                grid-template-columns: 1fr;\n                gap: 12px;\n            }\n            .temp-graphic {\n                height: 50px;\n                border-radius: 30px;\n                margin: 10px auto;\n            }\n            .temp-label {\n                font-size: 0.8rem;\n                padding: 0 5px;\n            }\n            .temp-marker {\n                top: -20px;\n                min-width: 55px;\n                font-size: 0.7rem;\n                padding: 2px 6px;\n            }\n            .spec-download-btn {\n                padding: 7px 15px;\n                font-size: 0.85rem;\n            }\n            .installation-container {\n                gap: 8px;\n                margin: 12px auto;\n            }\n            \/* 移动端视频调整 *\/\n            .video-frame {\n                height: 400px;\n            }\n        }\n        \n        @media (max-width: 480px) {\n            header {\n                padding: 25px 15px 30px;\n            }\n            header h1 {\n                font-size: 1.4rem;\n            }\n            .tagline {\n                font-size: 0.9rem;\n            }\n            .section-title {\n                font-size: 1.2rem;\n                margin-bottom: 8px;\n            }\n            .feature-item, .power-item, .install-item {\n                padding: 10px;\n            }\n            .feature-icon, .power-icon, .install-icon {\n                font-size: 1.6rem;\n            }\n            .feature-title, .install-title {\n                font-size: 1rem;\n            }\n            .temp-graphic {\n                height: 45px;\n            }\n            .temp-label {\n                font-size: 0.75rem;\n            }\n            .temp-marker {\n                font-size: 0.65rem;\n                min-width: 50px;\n                top: -18px;\n            }\n            .spec-download-btn {\n                padding: 6px 12px;\n                font-size: 0.8rem;\n            }\n            .content-section {\n                margin: 15px 0;\n            }\n            \/* 小屏幕视频调整 *\/\n            .video-frame {\n                height: 300px;\n            }\n            .video-title {\n                font-size: 1rem;\n            }\n            .video-subtitle {\n                font-size: 0.85rem;\n            }\n        }\n    \u003c\/style\u003e\n\u003cheader\u003e\n\u003cdiv class=\"header-decor\"\u003e\n\u003cdiv class=\"circle circle-1\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"circle circle-2\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"header-content\"\u003e\n\u003cdiv class=\"model\"\u003ePREMIUM SOLAR ATTIC FAN\u003c\/div\u003e\n\u003ch1\u003eLANGY 55W Solar Attic Fan\u003c\/h1\u003e\n\u003cp class=\"tagline\"\u003eReduce HVAC Costs Up to 40% \u0026amp; Protect Your Home Year-Round\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/header\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"content-section\"\u003e\n\u003ch2 class=\"section-title\"\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cdiv class=\"features-grid\"\u003e\n\u003cdiv class=\"feature-item\"\u003e\n\u003cdiv class=\"feature-icon\"\u003e\n\u003ci class=\"fas fa-money-bill-wave\"\u003e\u003c\/i\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"feature-title\"\u003eSlash HVAC Costs\u003c\/h3\u003e\n\u003cdiv class=\"feature-content\"\u003e\n\u003cp\u003e\u003cstrong\u003eWinter:\u003c\/strong\u003e Prevents moisture buildup, reducing mold, rot, and insulation damage risks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSummer:\u003c\/strong\u003e Reduces attic temperatures by up to \u003cstrong\u003e40°F\u003c\/strong\u003e, lowering AC workload and energy bills.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-item\"\u003e\n\u003cdiv class=\"feature-icon\"\u003e\n\u003ci class=\"fas fa-thermometer-half\"\u003e\u003c\/i\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"feature-title\"\u003eSmart Thermostat Control\u003c\/h3\u003e\n\u003cdiv class=\"feature-content\"\u003e\n\u003cp\u003eBuilt-in preset thermostat for automatic operation:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAutomatically starts at \u003cstrong\u003e77°F\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAutomatically stops at \u003cstrong\u003e73°F\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis feature can be disabled for manual control.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-item\"\u003e\n\u003cdiv class=\"feature-icon\"\u003e\n\u003ci class=\"fas fa-volume-mute\"\u003e\u003c\/i\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"feature-title\"\u003eQuiet \u0026amp; Maintenance-Free\u003c\/h3\u003e\n\u003cdiv class=\"feature-content\"\u003e\n\u003cp\u003e55W high-efficiency solar panel provides quiet, clean energy operation.\u003c\/p\u003e\n\u003cp\u003eLow noise level and no maintenance required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-item\"\u003e\n\u003cdiv class=\"feature-icon\"\u003e\n\u003ci class=\"fas fa-shield-alt\"\u003e\u003c\/i\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"feature-title\"\u003eBuilt to Last\u003c\/h3\u003e\n\u003cdiv class=\"feature-content\"\u003e\n\u003cp\u003eSteel support parts guarantee solid structures and aluminum alloy frame delivers lightweight and convenience.\u003c\/p\u003e\n\u003cdiv class=\"warranty-badge\"\u003e\n\u003ci class=\"fas fa-award\"\u003e\u003c\/i\u003e 10-Year Limited Warranty\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"video-section\"\u003e\n\u003cdiv class=\"video-container\"\u003e\n\u003ciframe title=\"LANGY solar attic fan installation (replace turbine ventilator)\" src=\"https:\/\/www.youtube.com\/embed\/9Ea9nQ4WtI0\" class=\"video-frame\"\u003e\n                \u003c\/iframe\u003e\n\u003cdiv class=\"video-info\"\u003e\n\u003cdiv class=\"video-title\"\u003eLANGY Solar Attic Fan Installation (Replace Turbine Ventilator)\u003c\/div\u003e\n\u003cdiv class=\"video-subtitle\"\u003e\n\u003ci class=\"fas fa-clock\"\u003e\u003c\/i\u003e \u003cspan\u003eWatch installation guide\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-section\"\u003e\n\u003ch2 class=\"section-title\"\u003eSmart Thermostat Operation\u003c\/h2\u003e\n\u003cdiv class=\"thermostat-container\"\u003e\n\u003cp style=\"max-width: 800px; text-align: center; margin: 0 auto 10px; font-size: 0.95rem;\"\u003eThe fan features intelligent thermostat control to optimize energy efficiency and maintain ideal attic conditions automatically.\u003c\/p\u003e\n\u003cdiv class=\"temp-graphic\"\u003e\n\u003cdiv class=\"temp-marker off-marker\"\u003e73°F OFF\u003c\/div\u003e\n\u003cdiv class=\"temp-marker on-marker\"\u003e77°F ON\u003c\/div\u003e\n\u003cdiv class=\"temp-indicator off-indicator\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"temp-indicator on-indicator\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"temp-label\"\u003eCool\u003c\/div\u003e\n\u003cdiv class=\"temp-label\"\u003eComfortable\u003c\/div\u003e\n\u003cdiv class=\"temp-label\"\u003eHot\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"max-width: 800px; text-align: center; margin: 10px auto 0; font-size: 0.95rem;\"\u003eThe fan automatically activates when attic temperature reaches 77°F and stops when it cools to 73°F, maintaining optimal conditions without manual intervention.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-section\"\u003e\n\u003ch2 class=\"section-title\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv class=\"spec-download-btn-container\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0363\/8070\/4903\/files\/solar_attic_fan_specification_2-2.pdf?v=1783505055\" title=\"LANGY SOLAR ATTIC FAN\" rel=\"noopener\" class=\"spec-download-btn\" target=\"_blank\"\u003e \u003ci class=\"fas fa-download\"\u003e\u003c\/i\u003eDownload Specifications (PDF)\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"spec-download-btn-container\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0363\/8070\/4903\/files\/langy_solar_attic_fan_user_manual0709.pdf?v=1783566014\" title=\"LANGY SOLAR ATTIC FAN\" rel=\"noopener\" class=\"spec-download-btn\" target=\"_blank\"\u003eDownload User Manual (PDF)\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"specs-container\"\u003e\n\u003cdiv\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eSF-55-S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSolar Panel Power\u003c\/th\u003e\n\u003ctd\u003e18V\/55W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSolar Panel Size\u003c\/th\u003e\n\u003ctd\u003e22\" x 22\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAirflow\u003c\/th\u003e\n\u003ctd\u003eUp to 1200 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCoverage Area\u003c\/th\u003e\n\u003ctd\u003e2,200 sq\/ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFan Speeds\u003c\/th\u003e\n\u003ctd\u003e6 levels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eControls\u003c\/th\u003e\n\u003ctd\u003eBuilt-in Preset Thermostat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMotor Type\u003c\/th\u003e\n\u003ctd\u003eDC 25W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCap Dimension\u003c\/th\u003e\n\u003ctd\u003e18.25\" x 18.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRough Cut-out\u003c\/th\u003e\n\u003ctd\u003e12.3\" x 12.3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlashing size\u003c\/th\u003e\n\u003ctd\u003e22\" x 22\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRemote control distance\u003c\/th\u003e\n\u003ctd\u003e65ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"highlight\"\u003e10 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ctable class=\"mobile-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eSF-55-S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSolar Panel Power\u003c\/th\u003e\n\u003ctd\u003e18V\/55W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSolar Panel Size\u003c\/th\u003e\n\u003ctd\u003e22\" x 22\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAirflow\u003c\/th\u003e\n\u003ctd\u003eUp to 1200 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCoverage Area\u003c\/th\u003e\n\u003ctd\u003e2,200 sq\/ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFan Speeds\u003c\/th\u003e\n\u003ctd\u003e6 levels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControls\u003c\/th\u003e\n\u003ctd\u003eBuilt-in Preset Thermostat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMotor Type\u003c\/th\u003e\n\u003ctd\u003eDC 25W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCap Dimension\u003c\/th\u003e\n\u003ctd\u003e18.25\" x 18.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRough Cut-out\u003c\/th\u003e\n\u003ctd\u003e12.3\" x 12.3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlashing size\u003c\/th\u003e\n\u003ctd\u003e22\" x 22\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRemote control distance\u003c\/th\u003e\n\u003ctd\u003e65ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"highlight\"\u003e10 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-section\"\u003e\n\u003ch2 class=\"section-title\"\u003eDIY-Friendly Installation\u003c\/h2\u003e\n\u003cp style=\"text-align: center; max-width: 800px; margin: 0 auto 12px; font-size: 0.95rem;\"\u003eInstallation is intuitive and a breeze\u003c\/p\u003e\n\u003cdiv class=\"installation-container\"\u003e\n\u003cdiv class=\"install-item\"\u003e\n\u003cdiv class=\"install-icon\"\u003e\n\u003ci class=\"fas fa-video\"\u003e\u003c\/i\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"install-title\"\u003eVideo Guide\u003c\/h3\u003e\n\u003cp\u003eStep-by-step installation video\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"install-item\"\u003e\n\u003cdiv class=\"install-icon\"\u003e\n\u003ci class=\"fas fa-toolbox\"\u003e\u003c\/i\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"install-title\"\u003eAll Hardware\u003c\/h3\u003e\n\u003cp\u003eEverything included\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"install-item\"\u003e\n\u003cdiv class=\"install-icon\"\u003e\n\u003ci class=\"fas fa-shield-alt\"\u003e\u003c\/i\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"install-title\"\u003eLeak-Proof\u003c\/h3\u003e\n\u003cp\u003eWatertight design\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"install-item\"\u003e\n\u003cdiv class=\"install-icon\"\u003e\n\u003ci class=\"fas fa-clock\"\u003e\u003c\/i\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"install-title\"\u003eQuick Setup\u003c\/h3\u003e\n\u003cp\u003e1-2 hours installation\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Langy Solar Lights","offers":[{"title":"Default Title","offer_id":42626997616775,"sku":"SF-55W-S","price":259.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0363\/8070\/4903\/files\/20250517-173343.jpg?v=1768653737"},{"product_id":"55w-12-solar-attic-fan-with-smart-power-adapter-remote","title":"12\" Solar Roof Fan-55W Dual-Power","description":"\u003cdiv style=\"max-width: 1000px; margin: 0 auto; padding: 15px; font-family: 'Segoe UI', Arial, sans-serif; color: #333333; line-height: 1.6; background-color: #ffffff;\"\u003e\n\u003cdiv style=\"text-align: center; padding: 35px 20px; background: linear-gradient(135deg, #1a3a6d 0%, #2c5aa0 100%); color: #ffffff; border-radius: 12px; margin-bottom: 30px; box-shadow: 0 4px 12px rgba(0,0,0,0.05);\"\u003e\n\u003ch1 style=\"font-size: 2rem; margin: 0 0 10px 0; font-weight: 800; line-height: 1.2; color: #ffffff;\"\u003eDual-Power Solar Roof Fan\u003c\/h1\u003e\n\u003cp style=\"font-size: 1.05rem; max-width: 800px; margin: 0 auto 15px; color: rgba(255,255,255,0.95); line-height: 1.4;\"\u003e55W Solar Panel with Smart Thermostat \u0026amp; 65ft Remote Control\u003c\/p\u003e\n\u003cdiv style=\"font-size: 0.85rem; background-color: rgba(243, 156, 18, 0.25); border: 1px solid rgba(243, 156, 18, 0.4); display: inline-block; padding: 6px 16px; border-radius: 50px; font-weight: 600; color: #f39c12; letter-spacing: 0.5px;\"\u003e☀️ Solar + AC Backup • Always Working\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 1rem; color: #475569; margin: 0 0 30px 0; text-align: center; max-width: 850px; margin-left: auto; margin-right: auto; line-height: 1.6;\"\u003eBeat the summer heat and protect your home with our high-performance \u003cstrong\u003e55W Solar Roof Fan\u003c\/strong\u003e. Engineered with a powerful \u003cstrong\u003e1200 CFM motor\u003c\/strong\u003e and an intelligent automation system, this eco-friendly ventilator flushes out trapped heat and moisture from your attic—saving you money on AC bills without drawing a single watt of grid electricity during sunny days.\u003c\/p\u003e\n\u003cdiv style=\"margin-bottom: 35px;\"\u003e\n\u003ch2 style=\"font-size: 1.4rem; color: #2c5aa0; margin: 0 0 20px 0; padding-bottom: 8px; border-bottom: 2px solid #f39c12; font-weight: bold;\"\u003e🚀 Core Performance \u0026amp; Features\u003c\/h2\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 220px; background: #ffffff; border-radius: 8px; padding: 18px; box-shadow: 0 4px 10px rgba(0,0,0,0.05); border-left: 4px solid #2c5aa0;\"\u003e\n\u003ch3 style=\"font-size: 1.05rem; color: #2c5aa0; margin: 0 0 5px 0; font-weight: bold;\"\u003e55W Solar Panel\u003c\/h3\u003e\n\u003cp style=\"color: #555555; font-size: 0.88rem; margin: 0; line-height: 1.4;\"\u003ePremium monocrystalline solar panel captures maximum sunlight, delivering consistent, powerful airflow even on overcast days.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 220px; background: #ffffff; border-radius: 8px; padding: 18px; box-shadow: 0 4px 10px rgba(0,0,0,0.05); border-left: 4px solid #2c5aa0;\"\u003e\n\u003ch3 style=\"font-size: 1.05rem; color: #2c5aa0; margin: 0 0 5px 0; font-weight: bold;\"\u003eSmart Thermostat\u003c\/h3\u003e\n\u003cp style=\"color: #555555; font-size: 0.88rem; margin: 0; line-height: 1.4;\"\u003eAuto on at \u003cspan style=\"color: #f39c12; font-weight: 600;\"\u003e77°F\u003c\/span\u003e, off at \u003cspan style=\"color: #f39c12; font-weight: 600;\"\u003e73°F\u003c\/span\u003e equilibrium protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 220px; background: #ffffff; border-radius: 8px; padding: 18px; box-shadow: 0 4px 10px rgba(0,0,0,0.05); border-left: 4px solid #2c5aa0;\"\u003e\n\u003ch3 style=\"font-size: 1.05rem; color: #2c5aa0; margin: 0 0 5px 0; font-weight: bold;\"\u003e65ft Remote \u0026amp; 6 Speeds\u003c\/h3\u003e\n\u003cp style=\"color: #555555; font-size: 0.88rem; margin: 0; line-height: 1.4;\"\u003eWireless controller to effortlessly toggle between 6 adjustable fan speeds or use manual override on demand.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 220px; background: #ffffff; border-radius: 8px; padding: 18px; box-shadow: 0 4px 10px rgba(0,0,0,0.05); border-left: 4px solid #2c5aa0;\"\u003e\n\u003ch3 style=\"font-size: 1.05rem; color: #2c5aa0; margin: 0 0 5px 0; font-weight: bold;\"\u003eHurricane-Force Build\u003c\/h3\u003e\n\u003cp style=\"color: #555555; font-size: 0.88rem; margin: 0; line-height: 1.4;\"\u003e1300 CFM high-velocity airflow wrapped in a heavy-duty weatherproof housing to endure extreme weather conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #f8f9fa; padding: 20px; border-radius: 12px; margin: 35px 0; border: 1px solid #e9ecef;\"\u003e\n\u003ch2 style=\"text-align: center; font-size: 1.3rem; margin: 0 0 15px 0; color: #2c5aa0; font-weight: bold;\"\u003eWhy Choose Our Dual-Power System?\u003c\/h2\u003e\n\u003cdiv style=\"width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch;\"\u003e\n\u003ctable style=\"width: 100%; min-width: 500px; border-collapse: collapse; background: #ffffff; border-radius: 8px; overflow: hidden; box-shadow: 0 2px 6px rgba(0,0,0,0.03); font-size: 0.9rem;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #2c5aa0; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left; font-weight: 600; color: #ffffff;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left; font-weight: 600; color: #ffffff;\"\u003eSolar-Only Fans\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left; font-weight: 600; background-color: #f39c12; color: #ffffff;\"\u003eLANGY Dual-Power\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #eee; font-weight: 600; color: #2c5aa0;\"\u003e24\/7 Operation\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #eee; color: #e74c3c;\"\u003e✗ Stops completely at night\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #eee; color: #27ae60; font-weight: 600;\"\u003e✓ Always working via AC backup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #eee; font-weight: 600; color: #2c5aa0;\"\u003eYear-Round Use\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #eee; color: #e74c3c;\"\u003e✗ Strict seasonal daylight limits\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #eee; color: #27ae60; font-weight: 600;\"\u003e✓ Active protection in all seasons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #eee; font-weight: 600; color: #2c5aa0;\"\u003eClimate Flexibility\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #eee; color: #e74c3c;\"\u003e✗ Needs direct, unshaded sun\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #eee; color: #27ae60; font-weight: 600;\"\u003e✓ Runs flawlessly in any climate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #eee; font-weight: 600; color: #2c5aa0;\"\u003eContinuous Security\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #eee; color: #e74c3c;\"\u003e✗ Daytime attic ventilation only\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #eee; color: #27ae60; font-weight: 600;\"\u003e✓ 24\/7 continuous moisture control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 35px;\"\u003e\n\u003ch2 style=\"font-size: 1.4rem; color: #2c5aa0; margin: 0 0 20px 0; padding-bottom: 8px; border-bottom: 2px solid #f39c12; font-weight: bold;\"\u003e🏡 Smart Functions \u0026amp; Home Benefits\u003c\/h2\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 20px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; background: #ffffff; border-radius: 8px; padding: 20px; box-shadow: 0 3px 10px rgba(0,0,0,0.06); border-top: 4px solid #2c5aa0;\"\u003e\n\u003ch3 style=\"font-size: 1.1rem; color: #2c5aa0; margin: 0 0 12px 0; font-weight: bold;\"\u003e🧠 Automatic Operation\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 0.9rem; color: #475569;\"\u003e\u003cstrong\u003e✓ Built-in Thermostat:\u003c\/strong\u003e Fully automated climate logic.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 0.9rem; color: #475569;\"\u003e\u003cstrong\u003e✓ Thermal Kick:\u003c\/strong\u003e Starts automatically at 77°F to flush out extreme heat.\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 0.9rem; color: #475569;\"\u003e\u003cstrong\u003e✓ Eco-Stop:\u003c\/strong\u003e Shuts down at 73°F once the equilibrium is restored.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; background: #ffffff; border-radius: 8px; padding: 20px; box-shadow: 0 3px 10px rgba(0,0,0,0.06); border-top: 4px solid #f39c12;\"\u003e\n\u003ch3 style=\"font-size: 1.1rem; color: #f39c12; margin: 0 0 12px 0; font-weight: bold;\"\u003e⚡ Hybrid Power Utility\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 0.9rem; color: #475569;\"\u003e\u003cstrong\u003e✓ Solar Priority:\u003c\/strong\u003e 55W panel serves as the primary free energy source.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 0.9rem; color: #475569;\"\u003e\u003cstrong\u003e✓ Smart AC Switching:\u003c\/strong\u003e Automatically flips to AC adapter backup at night.\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 0.9rem; color: #475569;\"\u003e\u003cstrong\u003e✓ Whisper-Quiet Motor:\u003c\/strong\u003e Massive 1200+ CFM output with zero irritating background hum.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; background: #ffffff; border-radius: 8px; padding: 20px; box-shadow: 0 3px 10px rgba(0,0,0,0.06); border-top: 4px solid #27ae60;\"\u003e\n\u003ch3 style=\"font-size: 1.1rem; color: #27ae60; margin: 0 0 12px 0; font-weight: bold;\"\u003e🛡️ Asset Protection\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 0.9rem; color: #475569;\"\u003e\u003cstrong\u003e✓ Slash AC Invoices:\u003c\/strong\u003e Reduces thermal load so central HVAC runs smoothly.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 0.9rem; color: #475569;\"\u003e\u003cstrong\u003e✓ Anti-Mold Defense:\u003c\/strong\u003e Exhausts damp winter air before condensation destroys wood.\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 0.9rem; color: #475569;\"\u003e\u003cstrong\u003e✓ Roof Longevity:\u003c\/strong\u003e Prevents extreme blistering shingles and costly ice dam rot.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 35px; padding: 20px; background-color: #ffffff; border-radius: 12px; border: 1px solid #e2e8f0;\"\u003e\n\u003ch2 style=\"font-size: 1.4rem; color: #2c5aa0; margin: 0 0 15px 0; font-weight: bold; text-align: center;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv style=\"text-align: center; margin-bottom: 25px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0363\/8070\/4903\/files\/solar_attic_fan_specification_2-2.pdf?v=1783505055\" rel=\"noopener\" style=\"display: inline-block; background-color: #2c5aa0; color: #ffffff; padding: 10px 20px; font-size: 0.9rem; font-weight: 600; text-decoration: none; border-radius: 6px; box-shadow: 0 2px 5px rgba(44,90,160,0.25);\" target=\"_blank\"\u003e 📥 Download Specifications (PDF)\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center; margin-bottom: 25px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0363\/8070\/4903\/files\/langy_solar_attic_fan_user_manual0709.pdf?v=1783566014\" rel=\"noopener\" style=\"display: inline-block; background-color: #2c5aa0; color: #ffffff; padding: 10px 20px; font-size: 0.9rem; font-weight: 600; text-decoration: none; border-radius: 6px; box-shadow: 0 2px 5px rgba(44,90,160,0.25);\" target=\"_blank\"\u003e 📥 Download User Manual (PDF)\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 20px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 0.88rem;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom: 1px solid #edf2f7;\"\u003e\n\u003cth style=\"padding: 10px; text-align: left; color: #4a5568; font-weight: 600; width: 45%;\"\u003eModel\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; color: #1a202c;\"\u003eSF-55-D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #edf2f7;\"\u003e\n\u003cth style=\"padding: 10px; text-align: left; color: #4a5568; font-weight: 600;\"\u003eSolar Panel Power\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; color: #1a202c;\"\u003e18V \/ 55W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #edf2f7;\"\u003e\n\u003cth style=\"padding: 10px; text-align: left; color: #4a5568; font-weight: 600;\"\u003eSolar Panel Size\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; color: #1a202c;\"\u003e22\" x 22\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #edf2f7;\"\u003e\n\u003cth style=\"padding: 10px; text-align: left; color: #4a5568; font-weight: 600;\"\u003eMax Pure Airflow\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; color: #1a202c;\"\u003eUp to 1200 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #edf2f7;\"\u003e\n\u003cth style=\"padding: 10px; text-align: left; color: #4a5568; font-weight: 600;\"\u003eCoverage Area\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; color: #1a202c;\"\u003eUp to 2,200 Sq. Ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #edf2f7;\"\u003e\n\u003cth style=\"padding: 10px; text-align: left; color: #4a5568; font-weight: 600;\"\u003eFan Speed Control\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; color: #1a202c;\"\u003e6 Levels Configurable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 0.88rem;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom: 1px solid #edf2f7;\"\u003e\n\u003cth style=\"padding: 10px; text-align: left; color: #4a5568; font-weight: 600; width: 45%;\"\u003eControls Integration\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; color: #1a202c;\"\u003eBuilt-in Preset Thermostat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #edf2f7;\"\u003e\n\u003cth style=\"padding: 10px; text-align: left; color: #4a5568; font-weight: 600;\"\u003eMotor Mechanical Type\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; color: #1a202c;\"\u003ePremium DC 25W Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #edf2f7;\"\u003e\n\u003cth style=\"padding: 10px; text-align: left; color: #4a5568; font-weight: 600;\"\u003eRough Cut-Out Size\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; color: #1a202c;\"\u003e12.3\" x 12.3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #edf2f7;\"\u003e\n\u003cth style=\"padding: 10px; text-align: left; color: #4a5568; font-weight: 600;\"\u003eFlashing Profile Footprint\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; color: #1a202c;\"\u003e22\" x 22\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #edf2f7;\"\u003e\n\u003cth style=\"padding: 10px; text-align: left; color: #4a5568; font-weight: 600;\"\u003eRemote Range Distance\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; color: #1a202c;\"\u003eUp to 65 Feet Line-of-Sight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #edf2f7;\"\u003e\n\u003cth style=\"padding: 10px; text-align: left; color: #4a5568; font-weight: 600;\"\u003eFactory Warranty\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; color: #f39c12; font-weight: bold;\"\u003e10 Years Industry-Leading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 35px;\"\u003e\n\u003ch2 style=\"font-size: 1.4rem; color: #2c5aa0; margin: 0 0 8px 0; padding-bottom: 8px; border-bottom: 2px solid #f39c12; font-weight: bold; text-align: center;\"\u003eDIY-Friendly Installation\u003c\/h2\u003e\n\u003cp style=\"text-align: center; font-size: 0.95rem; color: #64748b; margin: 0 0 20px 0;\"\u003eIntuitive engineering makes structural setup a complete breeze\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 200px; background: #f8f9fa; border-radius: 8px; padding: 20px; text-align: center; border: 1px solid #e9ecef;\"\u003e\n\u003cdiv style=\"font-size: 2rem; margin-bottom: 8px;\"\u003e🎬\u003c\/div\u003e\n\u003ch3 style=\"font-size: 1rem; color: #1a3a6d; margin: 0 0 5px 0; font-weight: bold;\"\u003eVideo Guide\u003c\/h3\u003e\n\u003cp style=\"color: #64748b; font-size: 0.85rem; margin: 0;\"\u003eStep-by-step clear installation sequence mapping\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 200px; background: #f8f9fa; border-radius: 8px; padding: 20px; text-align: center; border: 1px solid #e9ecef;\"\u003e\n\u003cdiv style=\"font-size: 2rem; margin-bottom: 8px;\"\u003e🧰\u003c\/div\u003e\n\u003ch3 style=\"font-size: 1rem; color: #1a3a6d; margin: 0 0 5px 0; font-weight: bold;\"\u003eAll Hardware\u003c\/h3\u003e\n\u003cp style=\"color: #64748b; font-size: 0.85rem; margin: 0;\"\u003eEvery component bracket \u0026amp; fastener screw included\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 200px; background: #f8f9fa; border-radius: 8px; padding: 20px; text-align: center; border: 1px solid #e9ecef;\"\u003e\n\u003cdiv style=\"font-size: 2rem; margin-bottom: 8px;\"\u003e🛡️\u003c\/div\u003e\n\u003ch3 style=\"font-size: 1rem; color: #1a3a6d; margin: 0 0 5px 0; font-weight: bold;\"\u003eLeak-Proof\u003c\/h3\u003e\n\u003cp style=\"color: #64748b; font-size: 0.85rem; margin: 0;\"\u003eIntegrated seamless watertight flashing seal base\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 200px; background: #f8f9fa; border-radius: 8px; padding: 20px; text-align: center; border: 1px solid #e9ecef;\"\u003e\n\u003cdiv style=\"font-size: 2rem; margin-bottom: 8px;\"\u003e⏱️\u003c\/div\u003e\n\u003ch3 style=\"font-size: 1rem; color: #1a3a6d; margin: 0 0 5px 0; font-weight: bold;\"\u003eQuick Setup\u003c\/h3\u003e\n\u003cp style=\"color: #64748b; font-size: 0.85rem; margin: 0;\"\u003eStraightforward DIY execution takes roughly 1-2 hours\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #f1f5f9; padding: 20px; border-left: 5px solid #64748b; border-radius: 4px 8px 8px 4px; font-size: 0.92rem; color: #334155; margin-bottom: 35px;\"\u003e\n\u003cstrong style=\"color: #1e293b; display: block; margin-bottom: 4px;\"\u003e📦 Package Includes:\u003c\/strong\u003eSolar Roof Fan,  65ft Wireless Remote, Full Installation Mounting Hardware, and an Easy-to-Follow Setup Instruction Manual.\u003c\/div\u003e\n\u003cdiv style=\"text-align: center; padding: 30px 20px; background: linear-gradient(135deg, #2c5aa0 0%, #1a3a6d 100%); color: #ffffff; border-radius: 12px; box-shadow: 0 4px 12px rgba(44,90,160,0.15);\"\u003e\n\u003ch2 style=\"font-size: 1.5rem; margin: 0 0 8px 0; font-weight: bold; color: #ffffff;\"\u003eSmart Solar Climate Security\u003c\/h2\u003e\n\u003cp style=\"font-size: 0.95rem; max-width: 700px; margin: 0 auto 15px; color: rgba(255,255,255,0.9); line-height: 1.4;\"\u003eSecure premium 24\/7 uncompromised attic ventilation efficiency backed by intelligent secondary grid adapters.\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 0.85rem; color: #f39c12; font-weight: 600; letter-spacing: 0.5px; text-transform: uppercase;\"\u003e🛡️ 10-Year Warranty • 30-Day Money-Back Guarantee • Free Fast Shipping\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Langy Solar Lights","offers":[{"title":"Default Title","offer_id":43348144881799,"sku":"SF-55W-D","price":269.69,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0363\/8070\/4903\/files\/LANGY_800_x_800_px_3.jpg?v=1768653737"},{"product_id":"12-low-profile-solar-attic-vent-fan-25w","title":"12\" Low Profile Solar Attic Vent Fan -25W","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\u003clink rel=\"stylesheet\" href=\"https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/font-awesome\/6.4.0\/css\/all.min.css\"\u003e \u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=Montserrat:wght@500;600;700;800\u0026amp;family=Open+Sans:wght@400;500;600;700\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n        :root {\n            --primary: #2c5282;\n            --accent: #e67e22;\n            --accent-light: #fad7a0;\n            --accent-dark: #c45a10;\n            --secondary: #3498db;\n            --light: #f7fafc;\n            --dark: #2c3e50;\n            --gradient-primary: linear-gradient(135deg, var(--primary) 0%, #4a7cad 100%);\n            --gradient-accent: linear-gradient(135deg, var(--accent) 0%, #f39c12 100%);\n            --gradient-secondary: linear-gradient(135deg, var(--secondary) 0%, #5dade2 100%);\n        }\n        * {\n            margin: 0;\n            padding: 0;\n            box-sizing: border-box;\n            font-family: 'Open Sans', sans-serif;\n        }\n        body {\n            color: #4a5568;\n            line-height: 1.5;\n            background-color: #f0f4f8;\n            overflow-x: hidden;\n        }\n        h1, h2, h3, h4 {\n            font-family: 'Montserrat', sans-serif;\n            font-weight: 700;\n            color: var(--dark);\n        }\n        p {\n            font-size: 0.95rem;\n            color: #2d3748;\n            margin-bottom: 5px;\n        }\n        .container {\n            max-width: 1200px;\n            margin: 0 auto;\n            padding: 15px;\n        }\n        .content-section {\n            margin: 20px 0;\n            padding: 10px 0;\n        }\n        .section-title {\n            text-align: center;\n            font-size: 1.8rem;\n            margin-bottom: 15px;\n            position: relative;\n            color: var(--primary);\n        }\n        .section-title::after {\n            content: '';\n            display: block;\n            width: 70px;\n            height: 3px;\n            background: var(--gradient-accent);\n            margin: 6px auto;\n            border-radius: 2px;\n        }\n        header {\n            background: var(--gradient-primary);\n            color: white;\n            text-align: center;\n            padding: 30px 20px 40px;\n            position: relative;\n            overflow: hidden;\n            margin-bottom: 10px;\n        }\n        .header-decor {\n            position: absolute;\n            top: 0;\n            left: 0;\n            width: 100%;\n            height: 100%;\n            overflow: hidden;\n            z-index: 1;\n        }\n        .circle {\n            position: absolute;\n            border-radius: 50%;\n            background: rgba(255, 255, 255, 0.1);\n        }\n        .circle-1 {\n            width: 300px;\n            height: 300px;\n            top: -100px;\n            right: -70px;\n        }\n        .circle-2 {\n            width: 200px;\n            height: 200px;\n            bottom: -60px;\n            left: -50px;\n        }\n        .header-content {\n            position: relative;\n            z-index: 2;\n            max-width: 900px;\n            margin: 0 auto;\n        }\n        .model {\n            font-size: 0.85rem;\n            text-transform: uppercase;\n            letter-spacing: 2px;\n            margin-bottom: 4px;\n            color: rgba(255, 255, 255, 0.9);\n            font-weight: 600;\n        }\n        header h1 {\n            font-size: 2rem;\n            color: white;\n            margin-bottom: 6px;\n            text-shadow: 0 2px 4px rgba(0,0,0,0.2);\n        }\n        .tagline {\n            font-size: 1.1rem;\n            max-width: 800px;\n            margin: 0 auto;\n            font-weight: 600;\n            color: rgba(255, 255, 255, 0.95);\n        }\n        .features-grid {\n            display: grid;\n            grid-template-columns: repeat(2, 1fr);\n            gap: 12px;\n            margin: 12px 0;\n        }\n        .feature-item {\n            background: white;\n            border-radius: 10px;\n            padding: 15px;\n            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.06);\n            transition: all 0.3s ease;\n            border: none;\n        }\n        .feature-item:hover {\n            transform: translateY(-3px);\n            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);\n        }\n        .feature-icon {\n            font-size: 1.8rem;\n            color: var(--accent);\n            margin-bottom: 8px;\n            text-align: center;\n        }\n        .feature-title {\n            font-size: 1.1rem;\n            margin-bottom: 8px;\n            color: var(--primary);\n            text-align: center;\n        }\n        .feature-content {\n            text-align: center;\n        }\n        .warranty-badge {\n            display: inline-block;\n            background: rgba(230, 126, 34, 0.12);\n            color: var(--accent-dark);\n            padding: 4px 12px;\n            border-radius: 20px;\n            font-weight: 600;\n            margin-top: 6px;\n            font-size: 0.85rem;\n        }\n        .thermostat-container {\n            background: white;\n            border-radius: 12px;\n            padding: 18px;\n            max-width: 1000px;\n            margin: 0 auto;\n            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.06);\n        }\n        .temp-graphic {\n            display: flex;\n            justify-content: space-between;\n            align-items: center;\n            height: 60px;\n            background: linear-gradient(to right, #3498db, #2ecc71, #e74c3c);\n            border-radius: 40px;\n            margin: 12px auto;\n            position: relative;\n            max-width: 900px;\n        }\n        .temp-marker {\n            position: absolute;\n            top: -25px;\n            font-weight: 700;\n            text-align: center;\n            min-width: 65px;\n            background: white;\n            color: var(--primary);\n            padding: 3px 8px;\n            border-radius: 15px;\n            box-shadow: 0 3px 8px rgba(0, 0, 0, 0.08);\n            font-size: 0.8rem;\n            z-index: 2;\n        }\n        .off-marker {\n            left: 25%;\n            transform: translateX(-50%);\n        }\n        .on-marker {\n            left: 75%;\n            transform: translateX(-50%);\n        }\n        .temp-indicator {\n            position: absolute;\n            top: 100%;\n            width: 2px;\n            height: 15px;\n            background: var(--primary);\n            border-radius: 1px;\n        }\n        .off-indicator {\n            left: 25%;\n        }\n        .on-indicator {\n            left: 75%;\n        }\n        .temp-label {\n            flex: 1;\n            text-align: center;\n            font-weight: 600;\n            color: white;\n            text-shadow: 0 1px 2px rgba(0,0,0,0.3);\n            padding: 0 8px;\n            font-size: 0.85rem;\n        }\n        .specs-container {\n            display: grid;\n            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));\n            gap: 12px;\n            margin: 15px 0;\n        }\n        .specs-table {\n            width: 100%;\n            border-collapse: collapse;\n            background: white;\n            border-radius: 10px;\n            overflow: hidden;\n            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.06);\n        }\n        .specs-table th, .specs-table td {\n            padding: 10px;\n            text-align: left;\n            border-bottom: 1px solid #edf2f7;\n        }\n        .specs-table tr:last-child th, \n        .specs-table tr:last-child td {\n            border-bottom: none;\n        }\n        .specs-table th {\n            background-color: #ebf8ff;\n            font-weight: 600;\n            color: var(--primary);\n            width: 40%;\n        }\n        .highlight {\n            color: var(--accent-dark);\n            font-weight: 700;\n        }\n        .mobile-specs-table {\n            display: none;\n            width: 100%;\n            border-collapse: collapse;\n            background: white;\n            border-radius: 10px;\n            overflow: hidden;\n            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.06);\n            margin: 15px 0;\n        }\n        .spec-download-btn-container {\n            text-align: center;\n            margin: 12px auto;\n        }\n        .spec-download-btn {\n            display: inline-flex;\n            align-items: center;\n            justify-content: center;\n            padding: 8px 18px;\n            background: var(--gradient-primary);\n            color: white;\n            border-radius: 40px;\n            text-decoration: none;\n            font-weight: 600;\n            font-size: 0.9rem;\n            box-shadow: 0 4px 10px rgba(44, 82, 130, 0.25);\n            transition: all 0.3s ease;\n            border: none;\n            cursor: pointer;\n            font-family: 'Montserrat', sans-serif;\n            gap: 6px;\n        }\n        .spec-download-btn:hover {\n            transform: translateY(-2px);\n            box-shadow: 0 6px 15px rgba(44, 82, 130, 0.35);\n            background: var(--gradient-secondary);\n        }\n        .spec-download-btn i {\n            font-size: 1em;\n        }\n        .power-container {\n            display: grid;\n            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));\n            gap: 15px;\n            max-width: 1000px;\n            margin: 0 auto;\n        }\n        .power-item {\n            background: white;\n            border-radius: 12px;\n            padding: 18px;\n            text-align: center;\n            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.06);\n            transition: all 0.3s ease;\n        }\n        .power-item:hover {\n            transform: translateY(-3px);\n            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);\n        }\n        .power-icon {\n            font-size: 2.2rem;\n            margin-bottom: 12px;\n        }\n        .day-power .power-icon {\n            color: #f39c12;\n        }\n        .night-power .power-icon {\n            color: #3498db;\n        }\n        .power-title {\n            font-size: 1.2rem;\n            margin-bottom: 8px;\n            color: var(--primary);\n        }\n        .installation-container {\n            display: grid;\n            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));\n            gap: 10px;\n            max-width: 1000px;\n            margin: 15px auto;\n        }\n        .install-item {\n            text-align: center;\n            padding: 12px;\n            background: white;\n            border-radius: 10px;\n            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.06);\n            transition: all 0.3s ease;\n        }\n        .install-item:hover {\n            transform: translateY(-3px);\n            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);\n        }\n        .install-icon {\n            font-size: 1.8rem;\n            color: var(--accent);\n            margin-bottom: 6px;\n            text-align: center;\n        }\n        .install-title {\n            font-size: 1rem;\n            margin-bottom: 4px;\n            color: var(--primary);\n        }\n        .shipping-info {\n            background: white;\n            padding: 15px;\n            border-radius: 12px;\n            max-width: 550px;\n            margin: 0 auto;\n            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.06);\n            text-align: center;\n            border-top: 3px solid var(--accent);\n        }\n        .shipping-info h3 {\n            color: var(--primary);\n            font-size: 1.2rem;\n            margin-bottom: 8px;\n        }\n        .shipping-info h3 i {\n            color: var(--accent);\n            margin-right: 8px;\n        }\n        .shipping-info p {\n            font-size: 0.95rem;\n            margin: 3px 0;\n        }\n        ul {\n            margin: 6px 0;\n            padding-left: 20px;\n        }\n        li {\n            margin-bottom: 3px;\n            font-size: 0.9rem;\n        }\n        \n        \/* 视频模块样式 - 全屏显示 *\/\n        .video-section {\n            margin: 20px 0;\n            padding: 0;\n        }\n        \n        .video-container {\n            width: 100%;\n            max-width: 100%;\n            margin: 0;\n            padding: 0;\n        }\n        \n        .video-frame {\n            width: 100%;\n            height: 600px;\n            border: none;\n            border-radius: 0;\n            box-shadow: none;\n            display: block;\n        }\n        \n        .video-info {\n            background: white;\n            padding: 12px 15px;\n            margin-top: 0;\n            border-radius: 0 0 8px 8px;\n            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);\n        }\n        \n        .video-title {\n            font-size: 1.1rem;\n            font-weight: 600;\n            color: var(--primary);\n            margin-bottom: 4px;\n        }\n        \n        .video-subtitle {\n            font-size: 0.9rem;\n            color: #666;\n            display: flex;\n            align-items: center;\n            gap: 8px;\n        }\n        \n        .video-subtitle i {\n            color: var(--accent);\n        }\n        \n        @media (max-width: 992px) {\n            header h1 {\n                font-size: 1.8rem;\n            }\n            .tagline {\n                font-size: 1rem;\n            }\n            .section-title {\n                font-size: 1.5rem;\n                margin-bottom: 12px;\n            }\n            .temp-graphic {\n                height: 55px;\n                max-width: 95%;\n            }\n            .temp-marker {\n                font-size: 0.75rem;\n                min-width: 60px;\n                top: -22px;\n            }\n            \/* 平板端视频调整 *\/\n            .video-frame {\n                height: 500px;\n            }\n        }\n        \n        @media (max-width: 768px) {\n            .model {\n                font-size: 0.8rem;\n            }\n            header h1 {\n                font-size: 1.6rem;\n                margin-bottom: 4px;\n            }\n            .tagline {\n                font-size: 0.95rem;\n            }\n            .section-title {\n                font-size: 1.3rem;\n                margin-bottom: 10px;\n            }\n            .features-grid {\n                grid-template-columns: 1fr;\n                gap: 10px;\n                margin: 10px 0;\n            }\n            .specs-container {\n                display: none;\n            }\n            .mobile-specs-table {\n                display: table;\n            }\n            .power-container {\n                grid-template-columns: 1fr;\n                gap: 12px;\n            }\n            .temp-graphic {\n                height: 50px;\n                border-radius: 30px;\n                margin: 10px auto;\n            }\n            .temp-label {\n                font-size: 0.8rem;\n                padding: 0 5px;\n            }\n            .temp-marker {\n                top: -20px;\n                min-width: 55px;\n                font-size: 0.7rem;\n                padding: 2px 6px;\n            }\n            .spec-download-btn {\n                padding: 7px 15px;\n                font-size: 0.85rem;\n            }\n            .installation-container {\n                gap: 8px;\n                margin: 12px auto;\n            }\n            \/* 移动端视频调整 *\/\n            .video-frame {\n                height: 400px;\n            }\n        }\n        \n        @media (max-width: 480px) {\n            header {\n                padding: 25px 15px 30px;\n            }\n            header h1 {\n                font-size: 1.4rem;\n            }\n            .tagline {\n                font-size: 0.9rem;\n            }\n            .section-title {\n                font-size: 1.2rem;\n                margin-bottom: 8px;\n            }\n            .feature-item, .power-item, .install-item {\n                padding: 10px;\n            }\n            .feature-icon, .power-icon, .install-icon {\n                font-size: 1.6rem;\n            }\n            .feature-title, .install-title {\n                font-size: 1rem;\n            }\n            .temp-graphic {\n                height: 45px;\n            }\n            .temp-label {\n                font-size: 0.75rem;\n            }\n            .temp-marker {\n                font-size: 0.65rem;\n                min-width: 50px;\n                top: -18px;\n            }\n            .spec-download-btn {\n                padding: 6px 12px;\n                font-size: 0.8rem;\n            }\n            .content-section {\n                margin: 15px 0;\n            }\n            \/* 小屏幕视频调整 *\/\n            .video-frame {\n                height: 300px;\n            }\n            .video-title {\n                font-size: 1rem;\n            }\n            .video-subtitle {\n                font-size: 0.85rem;\n            }\n        }\n    \u003c\/style\u003e\n\u003cheader\u003e\n\u003cdiv class=\"header-decor\"\u003e\n\u003cdiv class=\"circle circle-1\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"circle circle-2\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"header-content\"\u003e\n\u003cdiv class=\"model\"\u003ePREMIUM SOLAR ATTIC FAN\u003c\/div\u003e\n\u003ch1\u003eLANGY 25W Solar Attic Fan\u003c\/h1\u003e\n\u003cp class=\"tagline\"\u003eReduce HVAC Costs Up to 40% \u0026amp; Protect Your Home Year-Round\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/header\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"content-section\"\u003e\n\u003ch2 class=\"section-title\"\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cdiv class=\"features-grid\"\u003e\n\u003cdiv class=\"feature-item\"\u003e\n\u003cdiv class=\"feature-icon\"\u003e\n\u003ci class=\"fas fa-money-bill-wave\"\u003e\u003c\/i\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"feature-title\"\u003eSlash HVAC Costs\u003c\/h3\u003e\n\u003cdiv class=\"feature-content\"\u003e\n\u003cp\u003e\u003cstrong\u003eWinter:\u003c\/strong\u003e Prevents moisture buildup, reducing mold, rot, and insulation damage risks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSummer:\u003c\/strong\u003e Reduces attic temperatures by up to \u003cstrong\u003e40°F\u003c\/strong\u003e, lowering AC workload and energy bills.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-item\"\u003e\n\u003cdiv class=\"feature-icon\"\u003e\n\u003ci class=\"fas fa-thermometer-half\"\u003e\u003c\/i\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"feature-title\"\u003eSmart Thermostat Control\u003c\/h3\u003e\n\u003cdiv class=\"feature-content\"\u003e\n\u003cp\u003eBuilt-in preset thermostat for automatic operation:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAutomatically starts at \u003cstrong\u003e77°F\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAutomatically stops at \u003cstrong\u003e73°F\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis feature can be disabled for manual control.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-item\"\u003e\n\u003cdiv class=\"feature-icon\"\u003e\n\u003ci class=\"fas fa-volume-mute\"\u003e\u003c\/i\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"feature-title\"\u003eQuiet \u0026amp; Maintenance-Free\u003c\/h3\u003e\n\u003cdiv class=\"feature-content\"\u003e\n\u003cp\u003e55W high-efficiency solar panel provides quiet, clean energy operation.\u003c\/p\u003e\n\u003cp\u003eLow noise level and no maintenance required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-item\"\u003e\n\u003cdiv class=\"feature-icon\"\u003e\n\u003ci class=\"fas fa-shield-alt\"\u003e\u003c\/i\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"feature-title\"\u003eBuilt to Last\u003c\/h3\u003e\n\u003cdiv class=\"feature-content\"\u003e\n\u003cp\u003eSteel support parts guarantee solid structures and aluminum alloy frame delivers lightweight and convenience.\u003c\/p\u003e\n\u003cdiv class=\"warranty-badge\"\u003e\n\u003ci class=\"fas fa-award\"\u003e\u003c\/i\u003e 10-Year Limited Warranty\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"video-section\"\u003e\n\u003cdiv class=\"video-container\"\u003e\n\u003ciframe title=\"LANGY solar attic fan installation (replace turbine ventilator)\" src=\"https:\/\/www.youtube.com\/embed\/9Ea9nQ4WtI0\" class=\"video-frame\"\u003e\n                \u003c\/iframe\u003e\n\u003cdiv class=\"video-info\"\u003e\n\u003cdiv class=\"video-title\"\u003eLANGY Solar Attic Fan Installation (Replace Turbine Ventilator)\u003c\/div\u003e\n\u003cdiv class=\"video-subtitle\"\u003e\n\u003ci class=\"fas fa-clock\"\u003e\u003c\/i\u003e \u003cspan\u003eWatch installation guide\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-section\"\u003e\n\u003ch2 class=\"section-title\"\u003eSmart Thermostat Operation\u003c\/h2\u003e\n\u003cdiv class=\"thermostat-container\"\u003e\n\u003cp style=\"max-width: 800px; text-align: center; margin: 0 auto 10px; font-size: 0.95rem;\"\u003eThe fan features intelligent thermostat control to optimize energy efficiency and maintain ideal attic conditions automatically.\u003c\/p\u003e\n\u003cdiv class=\"temp-graphic\"\u003e\n\u003cdiv class=\"temp-marker off-marker\"\u003e73°F OFF\u003c\/div\u003e\n\u003cdiv class=\"temp-marker on-marker\"\u003e77°F ON\u003c\/div\u003e\n\u003cdiv class=\"temp-indicator off-indicator\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"temp-indicator on-indicator\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"temp-label\"\u003eCool\u003c\/div\u003e\n\u003cdiv class=\"temp-label\"\u003eComfortable\u003c\/div\u003e\n\u003cdiv class=\"temp-label\"\u003eHot\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"max-width: 800px; text-align: center; margin: 10px auto 0; font-size: 0.95rem;\"\u003eThe fan automatically activates when attic temperature reaches 77°F and stops when it cools to 73°F, maintaining optimal conditions without manual intervention.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-section\"\u003e\n\u003ch2 class=\"section-title\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv class=\"spec-download-btn-container\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0363\/8070\/4903\/files\/solar_attic_fan_specification_2-2.pdf?v=1783505055\" title=\"LANGY SOLAR ATTIC FAN\" rel=\"noopener\" class=\"spec-download-btn\" target=\"_blank\"\u003e \u003ci class=\"fas fa-download\"\u003e\u003c\/i\u003eDownload Specifications (PDF)\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"spec-download-btn-container\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0363\/8070\/4903\/files\/25W_solar_attic_fan_user_manual0709.pdf?v=1783566434\" title=\"LANGY SOLAR ATTIC FAN\" rel=\"noopener\" class=\"spec-download-btn\" target=\"_blank\"\u003eDownload User Manual (PDF)\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"specs-container\"\u003e\n\u003cdiv\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eSF-25-S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSolar Panel Power\u003c\/th\u003e\n\u003ctd\u003e18V\/25W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSolar Panel Size\u003c\/th\u003e\n\u003ctd\u003e22\" x 22\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAirflow\u003c\/th\u003e\n\u003ctd\u003eUp to 1000 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCoverage Area\u003c\/th\u003e\n\u003ctd\u003e1,500 sq\/ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFan Speeds\u003c\/th\u003e\n\u003ctd\u003e6 levels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eControls\u003c\/th\u003e\n\u003ctd\u003eBuilt-in Preset Thermostat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMotor Type\u003c\/th\u003e\n\u003ctd\u003eDC 25W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCap Dimension\u003c\/th\u003e\n\u003ctd\u003e18.25\" x 18.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRough Cut-out\u003c\/th\u003e\n\u003ctd\u003e12.3\" x 12.3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlashing size\u003c\/th\u003e\n\u003ctd\u003e22\" x 22\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRemote control distance\u003c\/th\u003e\n\u003ctd\u003e65ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"highlight\"\u003e10 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ctable style=\"width: 100.063%; height: 281.667px;\" class=\"mobile-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 21.6667px;\"\u003e\n\u003cth style=\"width: 49.3213%; height: 21.6667px;\"\u003eModel\u003c\/th\u003e\n\u003ctd style=\"width: 50.4904%; height: 21.6667px;\"\u003eSF-25-S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 21.6667px;\"\u003e\n\u003cth style=\"width: 49.3213%; height: 21.6667px;\"\u003eSolar Panel Power\u003c\/th\u003e\n\u003ctd style=\"width: 50.4904%; height: 21.6667px;\"\u003e18V\/25W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 21.6667px;\"\u003e\n\u003cth style=\"width: 49.3213%; height: 21.6667px;\"\u003eSolar Panel Size\u003c\/th\u003e\n\u003ctd style=\"width: 50.4904%; height: 21.6667px;\"\u003e22\" x 22\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 21.6667px;\"\u003e\n\u003cth style=\"width: 49.3213%; height: 21.6667px;\"\u003eAirflow\u003c\/th\u003e\n\u003ctd style=\"width: 50.4904%; height: 21.6667px;\"\u003eUp to 1000 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 21.6667px;\"\u003e\n\u003cth style=\"width: 49.3213%; height: 21.6667px;\"\u003eCoverage Area\u003c\/th\u003e\n\u003ctd style=\"width: 50.4904%; height: 21.6667px;\"\u003e1,200 sq\/ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 21.6667px;\"\u003e\n\u003cth style=\"width: 49.3213%; height: 21.6667px;\"\u003eFan Speeds\u003c\/th\u003e\n\u003ctd style=\"width: 50.4904%; height: 21.6667px;\"\u003e6 levels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 21.6667px;\"\u003e\n\u003cth style=\"width: 49.3213%; height: 21.6667px;\"\u003eControls\u003c\/th\u003e\n\u003ctd style=\"width: 50.4904%; height: 21.6667px;\"\u003eBuilt-in Preset Thermostat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 21.6667px;\"\u003e\n\u003cth style=\"width: 49.3213%; height: 21.6667px;\"\u003eMotor Type\u003c\/th\u003e\n\u003ctd style=\"width: 50.4904%; height: 21.6667px;\"\u003eDC 25W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 21.6667px;\"\u003e\n\u003cth style=\"width: 49.3213%; height: 21.6667px;\"\u003eCap Dimension\u003c\/th\u003e\n\u003ctd style=\"width: 50.4904%; height: 21.6667px;\"\u003e18.25\" x 18.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 21.6667px;\"\u003e\n\u003cth style=\"width: 49.3213%; height: 21.6667px;\"\u003eRough Cut-out\u003c\/th\u003e\n\u003ctd style=\"width: 50.4904%; height: 21.6667px;\"\u003e12.3\" x 12.3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 21.6667px;\"\u003e\n\u003cth style=\"width: 49.3213%; height: 21.6667px;\"\u003eFlashing size\u003c\/th\u003e\n\u003ctd style=\"width: 50.4904%; height: 21.6667px;\"\u003e22\" x 22\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 21.6667px;\"\u003e\n\u003cth style=\"width: 49.3213%; height: 21.6667px;\"\u003eRemote control distance\u003c\/th\u003e\n\u003ctd style=\"width: 50.4904%; height: 21.6667px;\"\u003e65ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 21.6667px;\"\u003e\n\u003cth style=\"width: 49.3213%; height: 21.6667px;\"\u003eWarranty\u003c\/th\u003e\n\u003ctd style=\"width: 50.4904%; height: 21.6667px;\" class=\"highlight\"\u003e10 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-section\"\u003e\n\u003ch2 class=\"section-title\"\u003eDIY-Friendly Installation\u003c\/h2\u003e\n\u003cp style=\"text-align: center; max-width: 800px; margin: 0 auto 12px; font-size: 0.95rem;\"\u003eInstallation is intuitive and a breeze\u003c\/p\u003e\n\u003cdiv class=\"installation-container\"\u003e\n\u003cdiv class=\"install-item\"\u003e\n\u003cdiv class=\"install-icon\"\u003e\n\u003ci class=\"fas fa-video\"\u003e\u003c\/i\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"install-title\"\u003eVideo Guide\u003c\/h3\u003e\n\u003cp\u003eStep-by-step installation video\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"install-item\"\u003e\n\u003cdiv class=\"install-icon\"\u003e\n\u003ci class=\"fas fa-toolbox\"\u003e\u003c\/i\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"install-title\"\u003eAll Hardware\u003c\/h3\u003e\n\u003cp\u003eEverything included\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"install-item\"\u003e\n\u003cdiv class=\"install-icon\"\u003e\n\u003ci class=\"fas fa-shield-alt\"\u003e\u003c\/i\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"install-title\"\u003eLeak-Proof\u003c\/h3\u003e\n\u003cp\u003eWatertight design\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"install-item\"\u003e\n\u003cdiv class=\"install-icon\"\u003e\n\u003ci class=\"fas fa-clock\"\u003e\u003c\/i\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"install-title\"\u003eQuick Setup\u003c\/h3\u003e\n\u003cp\u003e1-2 hours installation\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Langy Solar Lights","offers":[{"title":"Default Title","offer_id":44872577646727,"sku":"X00534K49B","price":249.69,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0363\/8070\/4903\/files\/langy_low_profile_solar_attic_fan_1.jpg?v=1781442044"}],"url":"https:\/\/langyenergflash.com\/en-br\/collections\/solar-fan.oembed","provider":"Langy Energy","version":"1.0","type":"link"}