Alrska Flexible Solar Panel has good flexibility. Allows installation on boats, cabins, cars, yachts, roofs or any other irregular surface. Lightweight and easy to install, perfect for invisible solar assembly. And easy to transport, install, hang and disassemble. Made of ETFE material, which has higher light transmission and longer service life than ordinary materials. The back panel is made of TPT, which is good for heat dissipation, waterproof, high temperature resistant and easy to clean. Suitable for 12 volt battery charging. Multiple panels can be connected in series to charge 24/48 volt batteries. It needs to be used with controller to protect the battery and solar panel.