Item Type: Solar ControllerRated Voltage: 12V / 24VMaximum Power Point Tracking Efficiency: Greater than or equal to 95%Standby Power Consumption: 0.5W ~ 1.2WCooling Method: Self coolingMaximum Input Voltage: 100 system rated voltage VDCMinimum MPPT Voltage: Real-time battery voltage + 2VStarting Charging Voltage: Real-time battery voltage + 3VInput Low Voltage Protection Voltage: Real-time battery voltage + 2VRated Input Power: 520W for 12V lead-acid battery system and 1040W for 24V lead-acid battery systemRated Maximum Charging Current: 40ATemperature Compensation: -3mV / C / 2V (default)Charging Method: 3 Stages:CC(fast charging)-CV (constant voltage charging)-CF (floating charging)Output voltage accuracy <± 0.2VLoad Output Voltage: Same as battery voltageLoad Low Voltage Protection: 10.5V (low voltage protection), 11V (low voltage protection recovery), can be setSetting Method: Host computer / APP / controllerCommunication: For Dual RJ45 interface / RS485 / host computer software / WIFI module mobile phone APP / central monitoringProtection Function: Input and output overvoltage protection / input and output overvoltage protection, input and output reverse connection protection, overheat protection, battery drop protection, etc.Noise: Less than or equal to 10dBIP Protection Level: IP43Altitude: 0 ~ 3000m