This 200A MPPT solar charge controller is designed to ensure your solar panels operate at their peak efficiency . It helps maximize the small amount of current solar panels make in low light, allowing your battery to receive enough charge irrespective of the weather condition. It can work with system voltage of 12v, 24v, 36v and 48v . Maximum Pv voltage : 200v . Maximum Pv input power : 2600w (12v) , 5200w ( 24v) , 7800 ( 36v) , 10400w ( 48v) .