1IP67 protection grade, dust-proof, waterproof, anti-oxidation, durable, long-term use. 2Heat conductive silicone is used for filling and sealing, which is waterproof, dust proof and circuit oxidation proof. 3Equipped with thickened aluminum shell, multiple heat conduction grooves, good heat dissipation performance, increase product stability. 4With perfect overcharge protection, reverse connection protection, short circuit protection, high temperature protection and other functions, you can use it at ease. 5This controller can control the wind turbine to automatically charge the battery, and the use method is simple. Condition: NewItem Type: Wind Charge ControllerMaterial: Aluminum AlloyProtection Grade: IP67System Voltage: DC12V/24VStatic Power: 15mAFan Input Power: 12V 300W, 24V 600WFan Boost Start Voltage: 12V (24V Battery), 24V (48V Battery)Working Temperature: -35 C -70 CBattery Overcharge Protection Voltage: 14.4V (12V Battery) / 28.8V (24V Battery)Exit Overcharge Protection Voltage: 13.6V (12V Battery) / 27.6V (24V Battery)Applicable Battery: Lead Acid/ Gel BatteryWeight: Approx. 274g / 9.7ozSize: Approx. 9.3x8.4x2cm / 3.7x3.3x0.8in LED Indicator Indicating Content Status Function Green Fan Charging IndicationOff 1: Wind not connect,2: No wind On Wind charging Red Fan Brake Indication Off Controller working On Battery high voltage or high temperature 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.