... pump 2.pump inverter used for irrigation 3.efficiency 98% 4. without battery Solar ... point tracking (MPPT). The pump, drive by 3-phase AC motor, can draw water from ... change rapidly. · ·Digital control with full automatic running, data storage and complete protective functions (overload, over ... heat, reverse polarity, thunder, over flow and dry running). · ·The main circuit adopts intelligent power module ...