Features:Automatically manage the working of solar panel and battery in solar system.Overloading & short-circuit protection.Reverse discharging & reverse-polarity protection.Under-voltage and over-charging protection.Protection from lightning strike.Prolong the battery life cycle and keep the load work well.Easy to set up and operate.Suitable for small solar energy system.Package List:1 * Solar Charge Controller1 * User's Manual (English)