FOSSiBOT SP400 Pro Bifacial Portable Solar Panel, 400W Power, 25% Solar Conversion Efficiency, IP67 Waterproof, Foldable Design, MC4 to XT60 Cable

Highlights

400W Peak Output & Up to 25% TOPCon Efficiency

Powered by high-efficiency TOPCon monocrystalline solar cells, the SP400 Pro delivers up to 400W peak power with conversion efficiency of up to 25% and a 39.1V open circuit voltage, providing efficient solar charging for compatible portable power stations.

Bifacial Design with 10–15% Extra Real-World Power

The bifacial design captures sunlight from both sides, using reflected light from the rear to increase real-world power generation by 10–15% under suitable conditions. Actual gains vary with the surrounding surface, reaching up to 24.85% on highly reflective surfaces such as mirrors.

IP67 Waterproof & Rugged Outdoor Construction

Featuring an IP67-rated panel body, rigid aluminum frame and thick plastic corner guards, the SP400 Pro is built for demanding outdoor environments. It operates reliably from -10°C to 70°C for year-round outdoor use.

Foldable Design with 35° Integrated Kickstand

The 9kg panel folds to 691 × 790mm for easier transport and storage. Its integrated 35° kickstand provides a convenient setup angle for efficient solar exposure without requiring additional tools.

Wide Compatibility & Up to 800W Expandable Power

Equipped with standard MC4 connectors and an included MC4-to-XT60 solar charging cable, the SP400 Pro is compatible with 90% of mainstream portable power stations. Series and parallel connections are supported, with two panels in series reaching up to 800W peak power.

Specification

Brand: FOSSiBOT Type: Solar Panel  Model: SP400 Pro Color: Black Peak Power: 400W Solar Cell Type: TOPCon Monocrystalline Silicon Solar Conversion Efficiency: Up to 25% Open Circuit Voltage: 39.1V Bifacial Power Gain: 10–15% Output Connector: Standard MC4 Connection: Series & Parallel Max Power with 2 Panels in Series: 800W Waterproof Rating: IP67 Operating Temperature: -10°C to 70°C Bypass Diode: Built-in Anti-Hotspot Technology: Yes Frame Material: Rigid Aluminum Protection: Thick Plastic Corner Guards Stand Angle: 35° Compatibility: 90% of Mainstream Portable Power Stations Product Weight: 9kg Product Size: 2765×790×21.4mm