Good Solution For All Kinds Of USB devices,Enjoy Your Camping or Travel Widely Compatibility Sailboats, Yachts, Marine applications, Motorhomes, ExpeditionVehicles, Commercial Trucks, Caravans, Off-Grid and Remote communication sites and more. Easy installation (1) Holes on the panels are pre-drilled for fast mounting and securing, perfect for non-permanent installations. (2) Can be affixed by adhesive, grommets or velcro (with which you can easily attach or detach the panels.) (3) Can be installed without costly structural roof reinforcements. Parameters Solar Panel Power: 6W Material: Monocrystalline silicon Working Voltage: 5V with Voltage Controller Working Temp: -20℃--80℃ Material: PET+EVA+TPT Size:300*145*5mm Single gross weight: 0.125kg