Premium Quality: This brand-new wind turbine controller, with high quality material, is sturdy and durable. The brake circuit and rectifier part of the controller adopts integrated module design, which provides quality reliable and long service life. Fully Waterproof: This wind turbine controller adopts fully waterproof protection design, fully waterproof, and the protection level is higher than IP67. Automatic control: This controller controls the wind turbine to automatically charge the battery. When the battery is full, the fan is braked by the internal circuit automatic control. When the battery voltage drops to the recovery voltage, the fan starts charging the battery again, thus protecting the fan and the battery. Product Specifications: Model: FW12/24; rated voltage battery voltage: 12/24V, wind turbine rated power: 300W/600W; brake start voltage (factory value): 14.5V/29V; brake recovery voltage (factory value) voltage: 13.2V / 26.4V; display mode: Led (light-emitting diode display); operating temperature and humidity range: -35 - + 75; quiescent current: 15 mA; protection level: IP67 . Model: FW06-12/24-A Rated battery voltage: 12/24V Rated wind turbine power: 600W< /p> Brake start voltage: 30V Brake recovery voltage: 27V Display mode: LED (light emitting diode display) Operating temperature and humidity range: -35~+75 Size of the controller shell: 100mm 87mm 28mm Quiescent current: 20mA Protection class: IP67 Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.