Features: 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 protection measures. Comprehensive waterproof protection, not easy to be corrosive and get damaged in humid conditions, more reliable. 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. Specification:Model: SF-12-24-A Weight: Approx.264g/ 9.3ozRated battery voltage: 12V/24VRated wind power: 300W/600WWorking temperature range: -35~75℃Protection type: IP67Package List:1 * Wind Turbine ControllerNote:Please allow slight error due to manual measurement. Thanks for your understanding.