1.Professional ac power manufacturer 2.5years experience in power field ... N (High Range) (optional 0-600V, L-L)Voltage Regulation<= 1%Current LimitL-N at 120 VL: 333.4AL-N at ... 120-150% 2 sec., 200% Instant TripEfficiency> 80%INDICATORSLEDFreq. (0.1 Hz), Volt (0.1V), Amp (0.1A), Power (0.1W ... ° CHumidity0 - 90% Non-condensingAudible Noise< 45 dB at 1 meterDIMENSIONSW x H x D (mm)1,200*1,950*800W x H x D ...