Features FULL PROTECTION: The MPPT wind turbine controller support battery overcharge, overdischarge, reverse connection, overload, lighting, current control, automatic braking or manual braking of the wind turbine FAST HEAT DISSIPATION: Wind turbine controller adopt the design of heat dissipation wind tunnel, which effectively solve the heat dissipation problem of the controller in the case of high current charging, making the state safe, stable, and increasing the service life HIGH EFFICIENCY: The controller adopt MPPT(high power point tracking) control method, which can ensure that the fan can the battery at low wind speed and low speed; Can also increase the utilization rate of fan power generation by 90% under the same conditions AUTOMATIC MATCHING: The wind turbine controller can automatically match the 12 or 24V battery. Control voltage and current limits while charging to ensure optimal charging results. CLEAR DIGITAL LED INDICATOR: MPPT wind generator controller has LED indicator to clearly view the working status of the air load controller, very convenient Spec: Item Type: MPPT Wind Turbine Controller Rated Voltage: 12V 24V Charging Mode: MPPT Wind Generator Braking Voltage: 14.5V/29V Wind Generator Recovery Voltage: 13.5/27V Protection Grade: IP67 Display Method: Diode indication How to Use: 1. Connect the thick red wire from the controller to the positive pole of the battery. 2. Connect the thick black wire from the controller to the negative pole of the battery. 3. Connect the three green wires from the controller to the three wires coming out of the wind turbine. Package List: 1 x Controller Package List 1 x Controller