1、HIGH ACCURACY: Using advanced bimodal peak or multi peak tracking technology, the controller can still accurately track the maximum power point when multiple peaks appear on the IV curve. 2、HIGH EFFICIENCY: The built in maximum power point tracking algorithm can improve the energy utilization efficiency of PV system, With the best MPPT tracking efficiency up to 99.9%. 3、APPLICABLE BATTERY: Charging program options are available for different types of batteries, including gel battery, sealed battery, open ended battery, lithium battery, etc. 4、MULTIPLE FUNCTION: Supports instantaneous high current startup of capacitive loads, supports automatic identification of battery voltage, and supports TVS arrester protection function. 5、CLEAR DISPLAY: LED fault indicators and an LCD screen that can display abnormal information help users quickly identify system faults, and can view equipment operating data and status. 6、GOOD PROTECTION: When the temperature exceeds the set value, the charging current will decrease in linear proportion to the temperature, effectively preventing damage due to overheating. 7、OTHER FUNCTION: With temperature compensation function, charging and discharging parameters can be adjusted automatically, with historical data storage function, data can be stored for one year. 1 x Solar Charge Controller1 x Cable2 x User Manual Item Type: Solar Charge ControllerMaterial: Aluminum AlloyMaximum PV Input Voltage: 92V(-25℃); 100V(25℃)Charging Current: 40ADischarge Current: 20AMaximum PV Power: 550W 12V; 1100W 24V