Widely Compatibility: Sailboats, Yachts, Marine applications, Motorhomes, Expedition Vehicles, 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 sticker (with which you can easily attach or detach the panels.) (3) Can be installed without costly structural roof reinforcements. Specification: Name: Solar Panel Material: PET+EVA+TPT Solar Panel Power: 20W Material: Monocrystalline silicon Working Voltage: 5V with Voltage Controller Working Temp: -20--80 Size: 300*145*5mm/11.8" * 5.7" * 0.2" Packing included: 1 * Solar Panel Note: 1. Please allow 1-3cm (0.4-1.18") difference due to manual measurement and slight color variation for different display setting. 2. Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand.