Automatically identify the voltage 12V or 24V, low-power consumption. The LED indicates the working state of the circuit, simple, intuitive and clear With short circuit, overload, anti-reverse protection, full, over-discharge automatic shutdown, recovery and other measures. Comprehensive waterproof protection, not easy to be corrosive and get damaged in humid conditions, more Wide application field: suitable for solar street lamp, courtyard lamp, and killing lamp, small solar power station system, and all kinds of wind power DC power supply system.