The complete system consists of solar panels, controller and solar pump. DC brushless motor, good quality. IP54 water proof controller with MPPT, high efficiency. Protection of over voltage, over current, short circuit, anti-reverse connection etc. water level sensors to prevent dry pumping and tank full. Start and stop automatically, soft start. DC&AC input optional, (AC input electricity 220V 50/60Hz or generator, our standard DC pump do not support AC input ). Remote control system, (RMS optional )