Features: _x000D_ 1. 100% brand new and high quality _x000D_ 1. This controller controls the wind turbine to automatically charge the battery. _x000D_ 2. 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 resumes charging the battery, thus protecting the fan and the battery. _x000D_ 3. The rectifier and brake circuit part of the controller adopts integrated module design. _x000D_ 4. Fully waterproof protection, fully waterproof and fully waterproof, with protection level above IP67. _x000D_ _x000D_ Specification: _x000D_ Condition: 100% Brand New _x000D_ Model: FW12/24 _x000D_ Battery Rated Voltage: 12/24V _x000D_ Wind Turbine Rated Power: 300W/600W _x000D_ Brake Start Voltage (Factory Value): 14.4V/28.8V _x000D_ Brake Recovery Voltage (Factory Value): 13.2V/26.4V _x000D_ Display Mode: Led (Light-Emitting Diode Display) _x000D_ Working Temperature And Humidity Range: -35-+75 _x000D_ Quiescent Current: 15 mA _x000D_ Protection Level: IP67 _x000D_ Weight: Approx. 255g / 9.0oz _x000D_ Size: Approx. 100 * 87 * 28mm / 3.9 * 3.4 * 1.1in _x000D_ _x000D_ Wiring: _x000D_ 1. Connect the positive and negative terminals of the battery to the positive (red) and negative (black) terminals of the battery. _x000D_ 2. Connect the three-phase output voltage of the wind turbine to the three-phase input (green line) terminal of the controller fan. _x000D_ _x000D_ Package List: _x000D_ 1 * Wind Turbine Controller _x000D_ _x000D_ Note: _x000D_ 1. Verify that the wind turbine output voltage matches the rated voltage of the battery. _x000D_ 2. Wiring sequence: first connect the positive and negative poles of the battery, then connect the three-phase voltage output of the fan. _x000D_ Please connect the battery and wind turbine to the controller in strict accordance with the instructions. If the polarity is reversed or the wrong position is connected, the system will work abnormally and even cause the controller to be completely damaged. _x000D_ 3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.