1、High conversion efficiency: Solar panels have high conversion efficiency, good output efficiency, low light efficiency, light weight, easy portability, and strong applicability. 2、Polysilicon material: The solar panel charger adopts polysilicon material, which has good light transmission and sealing, simple operation and easy to use. 3、7V rechargeable battery: The solar panel charger can charge 7V battery, working current 0-330 MA, is a special board for solar lights, without power storage function. 4、Scope of application: The solar panel charger is used for battery charging, home lighting, various low-power household appliances, scientific research projects, solar water pumps, small solar power generation systems, etc. 5、Lightweight and portable: Solar panels are small and light, light, compact, stylish and sturdy, beautiful shell, easy to carry and use.