Free Shipping Lifetime Customer Support 25 Year Output Warranty Highlight:★ The long-lasting 450W monocrystalline solar cells, the waterproof design ensures that the panel can be used in all weather conditions.★ 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.★ 450 Watts Monocrystalline PV Panel is made with high conversion efficiency cells, it has excellent performance in low light environments.★ 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 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.