Features 1CORE CONTROL FUNCTION: Real time monitoring of solar panel power generation and tracking of the highest voltage and current values (VI) so that the system can charge the battery at maximum power. Designed for off grid solar photovoltaic system to coordinate the operation of solar panels batteries and loads as the core control unit of the off grid photovoltaic system 2IMPROVE EFFICIENCY: Built in maximum power point tracking algorithm can significantly improve the energy utilization rate of the photovoltaic system and increase the charging efficiency by 15%20% compared with the traditional PWM method 3HIGH CONVERSION RATE: The product boasts an optimal MPPT tracking efficiency of up to 99.9% and advanced digital power technology increases the energy conversion efficiency of the circuit to 98% 4AUTOMATIC CONTROL: Controller can provide charging options for different types of batteries including gel batteries sealed batteries elastic batteries lithium batteries etc. Adopts limited current charging mode. When the solar panel power exceeds a certain level and the charging current is higher than the rated current the controller will automatically reduce the charging power to make the charging current reach the rated value 5CLEAR DISPLAY: The LCD screen can dynamically display the running state running parameters controller logs control parameters and so on. Users can easily check the parameters by pressing buttons and modify the control parameters according to different system requirements 6ADJUSTABLE AND MONITORING: The controller uses standard communication protocols allowing users to easily check and modify system parameters themselves. In addition by providing free monitoring software give users greatest convenience to meet their various needs for remote monitoring 7SELF CHECK PROTECTION: Possess 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 failure to greatest extent Specification Item Type: MPPT Solar Charge ControllerMaterial: Aluminum alloy and PCNo Load Loss: 0.7W-1.2WRated Charging Current: 30ARated Discharge Current: 20APhotovoltaic System Maximum Power: 400W (12V) 800W (24V)Maximum Load Power: 240W (12V) 480W (24V)Maximum Load Capacity: 10000FCommunication Mode: RS232 or RS485Altitude: 3000m Package List 1 x Solar Controller1 x Temperature Sensing Line1 x User Manual