40A MPPT Solar Charge Controller with LCD Display Dual USB Multiple Load Control Modes,New Mppt Technical Maximum Charging Current Feature: MPPT solar charge controller MPPT10-60: Compared with normal solar charge controller, this MPPT controller could increase efficiency by 10%-30%. This controller can charge and discharge at the same time. This MPPT controller has perfect SOC function, control charge current, and supply power to the loads. Reliable Protectionovervoltage, short circuit, overload, overcharge, over discharge protection function;Automatic focusing MPPT tracking charging, high charging efficiency,Non-stop detection during charging, bidirectional focusing tracking. Multi-function LCD DisplaysThis controller is 12V/24V 12V/24V automatically adapt,first connect the battery,then connect the solar panels,when YOU use it, make sure the battery has enough voltage,so that the controller can recognize the correct battery type Function: keep the battery on voltage condition. the battery from over-charging. the battery from over-discharging. the battery from reverse charging to solar panels during nights. Reverse Polarity Protection for Battery Reverse Polarity Protection for Solar Panels When the battery voltage is low, the controller will automatically cut off the load from the system. If the voltage of battery is back to normal and the load will restart working. According to the battery voltage grade, the controller can automatically set charge-off voltage, the load-off voltage, the load- voltage. (The parameter is under 25 condition, locked by the CPU procedure, cannot adjust.) The controller will automatically compensate the temperature of the charging voltage according to the changes of ambient temperature. Package Includes 1 x Solar Panels Battery Charge Controller 1 x User Manual