... 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;input voltage,output voltage, input current ,output current; frequency, ... 120V or 160-280VAC90V-120V or 160-280VAC380-415V ACAllowed Frequency Range Of Grid50HZ±4.5/60HZ±4.5Wave FormTHD<3 ...