... . Test the output power and loading capability of AC voltage regulator, inverter, switching power supply.Specifications:TypeIAC-380-20KWLoading ... .1A,Accuracy: 0.5%Input VoltageAC 3 Phase 380V / AC 1 Phase 220VDischarging Time0~99 hours 59 minutes, constant ... .7 inch colorful touching LCD, English operating menuDisplay Items3 Phase voltage, current, frequency, temperature, power, total energy, run ...