Features： 1、25W monocrystalline flexible solar charging board, environmental protection and no pollution, to achieve the conversion of solar energy to electricity. 2、Made of waterproof and heat‑resistant materials, it can provide you with long‑term reliable use. 3、A wide range of applications, can be used in many places, such as mobile phones, sports cameras, 12v car batteries for cars, boats, etc. 4、High conversion rate, high efficiency output, perfect low light effect, as long as there is sunlight, it can work all the time. 5、Built-in short circuit protection, open circuit protection, reverse connection protection, overload protection. Specification： Item Type: Solar Panel Solar Panel Power: 25W Type of Solar Cell: Monocrystalline Silicon Solar Panel Size:Approx.540x280x3mm/21.3x11.0x0.1in Weight: Approx.950g/33.5oz Solar Panel Working Voltage: 18V Open Circuit Voltage Of Solar Panel: 21.6V Solar Panel Short-Circuit Current: 1.38A (Maximum) Output Port: Dual USB, DC5521 Female Head Product Features: Integrated Voltage Regulator Module, 5V Dual USB Voltage Regulator Output Product Use: 5V Equipment Charging for Mobile Phones, Sports Cameras, 12V Car Batteries for Cars, Boats, Etc. Package List： 1 x Solar Charging Board 2 x Carabiner 1 x Cigarette Lighter Adapter 1 x Clip Cable 4 x Suction Cups 1 x Controller 1 x User Manual