Features: The wind Charging controller support battery overcharge, overdischarge, reverse connection, overload, lighting, current control, automatic braking or manual braking of the wind. Wind Charging controller adopt the design of heat dissipation wind tunnel, which effectively solve the heat dissipation problem of the controller in case of high current charging, making the states safe, stable, and increasing the service life. The controller adopt MPPT(highly power points tracking) control way, which can ensuring that the fan can Charging the battery at low wind speeds and low speed; Can also increase the utilization rate of fan power generation by 90% under the same conditions. Supporting 200W (12V) and 400W (24V) power inputs, it can effectively manage the battery charging process, improve charging efficiency, and extend battery life. Wnd generator controller has LED indicators to clearly view the working condition of the air load controller, very convenient. Specifications: Component: Aluminum Alloy Size: about 8x9x2cm/3.15x3.54x0.79inch Package Includes: 1pc Wind Generator Controller note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.