1、Efficient Charge: Can monitor the power generated by the solar panel in real time, and follow the highest voltage and current VI, so that the system can charge the battery at the maximum power, significantly improving the energy utilization of the photovoltaic system. 2、Wide Application: Widely applied to the off grid solar photovoltaic system, and coordinates the operation of solar panels, batteries and loads as the core control unit of the off grid photovoltaic system, very practical in use. 3、Broad in Fitting: Can provide charging options for different types of batteries, including gel batteries, sealed batteries, elastic batteries, lithium batteries and other controllers that use limited current charging mode. When the power of the solar panel exceeds a certain level and the charging current is greater than the rated current, the controller will automatically reduce the charging power to make the charging current get to the rated value. 4、Clear in Display: LCD is adopted to dynamically display the operation status, operation parameters, controller log, control parameters, etc. Users can easily check the parameters by pressing the key, and modify the control parameters according to different system requirements. 5、The Communication: The controller adopts standard communication protocol, so that you can easily check and modify system parameters yourself to meet your various needs for remote monitoring. 6、Safer Protection: Has comprehensive electronic fault self detection function and powerful electronic protection function built in the controller, which can avoid component damage caused by installation error or system fault to the full extent. 1 x Solar Charge Controller1 x Temperature Sensor Line1 x English User Manual Item Type: Solar Charge ControllerMaterial: Aluminum alloy, PCBattery Voltage: 12V 24V, automatic. No Load Loss: 0.7W- 1.2WBattery Voltage: 9V-35VRated Charging Current: 20ARated Discharge Current: 20AMaximum Power of Photovoltaic System: 260W at 12V, 520W at 24V. Maximum Load Capacity: 10000μFCommunication Mode: RS232, RS485Maximum Voltage of Solar Panel: 100V at 25℃, 90Vat -25℃. Altitude: ≤ 3000m / 9842.52ft (approx.)