GreeSonic SunPower Semi Flexible Solar Panel 150W (ETFE+Aluminum) Photovoltaic Solar Panel (Thermostable) with MC4 connectors Brand Solar Cell: GreeSonic utilizes SunPower Solar Cell with a higher-than-average 21.5% efficiency Flexible panels : the panel can be gently flexed to follow a smooth curve of 20 degrees max, and can be mounted on RVs, cabin, house,tent, or any other irregular surface Superior Durability and Thermostability : the water resistant semi-flexible solar panel is ultra durable , thermostable and ideal for Motorhomes/RVs, Expedition Vehicles,Commercial Trucks/Trailers, Caravans/Popup Off-Grid and Remote Communication sites and more Powerful and Lightweight: this solar panel packs 150W of power yet is only 2.5mm thick , making it easier to transport, hang, and remove Easy Installation: unique frameless design features 4 metal reinforced mounting holes at each corner for fixing screws and for easy installation