Solar Charge Controller MPPT Photovoltaic Power Generation 12V 24V 20A MCU Control Solar Panel Charge Controller Item Type: Solar Charge Controller Material:ABS Product Size: Approx. 13.2 x 10 x 3.2cm / 5.2 x 3.9 x 1.3in Indicator Light: Solar: Charging Status Indicator, Steady Light Means Charging, Flashing Means Entering Floating Charging State. Load: Discharge Status Indicator, when the Load Indicator is On, It Means That the Battery is Allowed to Output, but It Does Not Mean Whether There is Actual Output Current. Battery: Battery Level Indicator Rated Charging Current: 20A System Voltage: 12V 24V Automatic Adaptation MPPT Tracking Efficiency: Maximum 99% Overload and Short Circuit Protection: ≥1.5 Times Rated Current No Load Loss: <10mA Overvoltage Protection: 16V; x2/24V Charge Cut off Voltage: 14.7V; x2/24V Discharge Recovery Voltage: 12.0V; x2/24V Discharge Cut off Voltage: 10.8V; x2/24V USB Output: 5V 1A Working Temperature: -35℃ to+55℃ Scope of Application:Industrial Water, Agricultural Irrigation, Photovoltaic Power Generation, Desert Control Weight: Approx. 375g/13.2oz