Features 1Efficient 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. 2Wide 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. 3Broad 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. 4Clear 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. 5The 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. 6Safer 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. Specification Item Type: Solar Charge ControllerMaterial: Aluminum alloy PCNo Load Loss: 0.7W-1.2WRated Charging Current: 20ARated Discharge Current: 20AMaximum Power of Photovoltaic System: 260W at 12V 520W at 24V. Maximum Load Capacity: 10000FCommunication Mode: RS232 RS485Altitude: 3000m / 9842.52ft (approx.) Package List 1 xSolar Charge Controller1 x Temperature Sensor Line1 x English User Manual