Feature 1 Automatically identify the voltage 12V or 24V, low-power consumption. 2 The LED indicates the working state of the circuit, simple, intuitive and clear 3 With short circuit, overload, anti-reverse protection, full, over-discharge automatic shutdown, recovery and other protection measures. 4 Comprehensive waterproof protection, not easy to be corrosive and get damaged in humid conditions, more reliable. 5 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.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/ 9.3oz Rated battery voltage: 12V/24V Rated wind turbine power: 300W/600W Working temperature range: -35~75 Protection type: IP67 Package List: 1 * Wind Turbine Controller Note: Please allow slight error due to manual measurement. Thanks for your understanding.