1、Smart Charging: This regulator can be applied to control the wind generator to automatically charge the battery. 2、Secure Working: When the battery is fully charged, the internal circuit automatically controls the fan to brake. When the battery voltage drops to the recovery voltage, the fan resumes charging the battery, thereby protecting the fan and battery. 3、Modular Design: The rectifier and brake circuit are designed with integrated modules, which are more advanced in terms of heat dissipation and reliability. 4、Using in Water: Full sealing and IP67 waterproof design ensures that the controller can be used normally for a long time even if it's placed in water, and the stability is greatly improved. 5、Easy to Install: Simple wiring with light weight and compact size makes the installation much more convenient. 1 x Wind Turbine Controller Item Type: Wind Turbine ControllerMaterial: Aluminium AlloyWorking Voltage: 48VPower: 400WSize: Approx. 9 x 8.5 x 2cm / 3.54 x 3.35 x 0.79inWaterproof Rating: IP67