... UPS, including temp, capacity, load, voltage and so on.When AC fails or low battery, the UPS can be started ... 3%(Linear full loads)Power factor0.8InputPhaseSingle phaseAC input voltage 220VAC±25%AC input frequency50Hz±0.5%DC ... minitue;Low voltage: 1 time/ 0.75 secondInverter abnormalRing;indicator light displayOthersDisplayLCD display indicates voltage,frequency, battery,load,temp,etc.LED indicates ...