Feature 1 Smart Charging: The controller can control the wind turbine to auto charge the battery. When the battery is fully charged, the fan will be braked automatically through the internal circuit control. When the battery voltage drops to the recovery voltage, the fan will resume charging the battery, thus protecting the fan and the battery. 2 Modular Design: The performance of the entire system is guaranteed. The rectification and braking circuit part of the controller adopts an integrated module, which is better in heat dissipation and reliability. 3 Reliable Works: This controller has fully sealed and completely waterproof design, and the protection level has got to IP67 and above. Even if it is placed in water, it can be used normally for a long time, and the stability and reliability are greatly improved. 4 Premium Casing: Aluminium alloy shell and multi edge bottom plate design will increase the heat dissipation area. It can keep the controller in the best cooling state for a long time. 5 Easy to Install: Designed to have a light weight and a compact size as well, the wind turbine controller is very convenient to install.Item Type: Wind Turbine Generator ControllerMaterial: Aluminium AlloyRated Battery Voltage: 12V, 24VRated Wind Turbine Capacity: 500WWind Turbine Braking Voltage: 14.5V, 29VWind Turbine Recovery Voltage: 13.5V, 27VIP Protection Level: IP67 Package List1 x Wind Turbine Generator ControllerNotePay attention to the safety of electricity use, and the wiring must be accurate.