SUNGOLDPOWER 550W Solar Panel 32PCS,Monocrystalline,High Efficiency,IP68 Waterproof for Charing 12V/24V/36V/48V Battery on Roof,Yard,Farm,Marine,on/Off Grid System UL61730(Total 17600W)

【Grade A solar cells】 : The long-lasting UL61730 550W monocrystalline grade A solar cells, the waterproof design ensures that the panel can be used in all weather conditions.
【High Tolerance】: SUNGOLDPOWER UL61730 550W Solar panels are designed for industrial and professional applications using scratch resistant anodized aluminum with a twin wall frame. The tough, sealed, aluminum frame will give you years and years of consistent, free power.
【Widely Use】: Easy Installation with pre-drilled hole. Corrosion-resistant aluminum frame for extended outdoor use. Suitable for Caravan, RV, Golf car, Electric car, Yacht, Boat, Tent or backpack etc.
【High Efficiency】: High modules conversion efficiency. Grade A solar cell and IP68 Rated waterproof solar panel connectors. This solar panel has 5 year 95% output warranty, 10 year 90% output warranty, 25 year 80% output warranty.