1、Wide Compatibility: This solar charger controller supports multiple types of batteries to meet the charging needs of different types of batteries from different customers. 2、Parameter Adjustment: According to user needs, many parameters can be adjusted, including language, Chinese and English display can be switched freely. 3、Excellent Performance: This solar charger possesses three drive charging, the efficiency is as high as 99.5%. Constant current, constant voltage, floating charge, with higher frequency, more stable charging, the battery life can be extended. 4、Safe to Use: With intelligent charging and discharging system control in the controller to avoid battery damage from overcharge and overdischarge. Use the controller with confidence! 5、Aluminum Alloy, ABS Material: Made of premium aluminum alloy and ABS material, the controller possesses fast heat dissipation, impact resistance, and long life span. 1 x Solar Charger Controller Item Type: Solar Charger ControllerMaterial: Aluminum Alloy, ABSSystem Voltage: 12, 24, 36, 48VDC (Automatic Identification)Rated Current: 80ARated Charging Power: 1040W 12V, 2080W 24V, 3120W 36V, 4160W 48VPV Input Maximum Open Circuit Voltage: DC150VOverall Efficiency: 99.5%Scope of Application: Acid Battery (you can also customize the setting parameters to charge other types of batteries)Control Mode: Normally Open Normally Closed Mode, Time Control Mode, Light Control ModeCooling Method: Air CoolingProtection Functions: Input and Output Over Voltage Protection, Input and Output Anti Reverse Connection Protection, Machine Over Temperature Protection, Load Over Current Protection