Feature: 1. [MPPT Technology] Ensures that the wind generator can still charge the battery at low wind speeds and low rotation, improving the power utilization by 90%. 2. [Automatic Matching] This wind generator controller can automatically match 12V or 24V battery, controlling voltage and current limit during charging to ensure best battery charging. 3. [Comprehensive Preservation] This wind turbine controller features overcharging, over discharge, reverse connection, overload preservation, supports auto braking or manual braking. 4. [Effective Heat Dissipation] Deep cooling wind tunnel rapidly dissipates heat, solving the cooling problem of controller during high current charging, ensuring safe, stable operation. 5. [IP67 Design] The wind turbine controller uses thermal silicone potting for sealing, making it waterproof, dustproof, and circuit oxidation resistant. Specification: Item Type: MPPT Wind Turbine Controller Material: Aluminum Alloy Rated Voltage: 12V 24V Charging Mode: MPPT Wind Generator Braking Voltage: 14.5V 29V Wind Generator Recovery Voltage: 13.5V 27V IP Rating: IP67 Display: Diode Indicator. Package List: 1 x MPPT Wind Turbine Controller