... with battery controler 4.OEM,ODM,200W TO 5K 220v 48v grid tie inverter in Qingdao allrun new energy co., ... LTD1)Digital DSP Control,Isolating by transformer. LCD display protection:input power,output power ... 4)MPPT control, duly track of maximum power output of PV module5) Pure sine wave output, auto in-phase grid-connected, fewer harmonic ...