... inverter 5.VFD ,MPPT, PWM function. 2013 new solar pump inverter1.solar pumping system consists of 3 components: 1.solar panels 2.solar pump ... water pump . no need battery.the solar arrays consists of mutiple solar cells,absorbing solar rediation energy into electricity.For the entire ... , to prevent overflow and dry well; 6.Protection grade IP41, working environment temperature: -10°C ~ + 50°C. 7.No ...