About This 【Powerful and Save Space】: 450W monocrystalline solar panel somes with UL61730 can produce up to 2250Wh of electricity per day with smaller space compared to 4pcs 100W or 2pcs 200W solar panels 【High Efficiency】: 450 Watts solar panel is made of Grade A solar cell and IP67 rated waterproof solar panel connectors which guarantee 21.25% high conversion efficiency a excellent performance in low light environments 【Reliable and Durable】:Solar panel consists of high-transmission low-iron tempered glass, excellent EVA, Monocrystalline silicon solar cells, waterproof film and scratch resistant anodized aluminum with a twin wall frame makes the solar panel could be applied for industrial and professional purpose 【Easy Installation and Wide Application】: 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, off grid and on grid system 【Wide Use and Warranty】450w mono solar panels work excellent with MPPT to charge 12V/24V/36V/48V batteries by series or parallel.You can get 10 years workmanship warranty and 25-year linear performance warranty for these excellent solar panels. Overview Brand : SGPWATT Material : Monocrystalline Silicon, excellent EVA, high-transmission low-iron tempered glass, waterproof film Product Dimensions : 75.2"L x 44.7"W x 1.2"H Item Weight : 54 Pounds Efficiency : 21.25%