... technology. Wide input range. Zero transfer time. 6-20KVA LED Online UPS, CPU control ,IGBT , High Reliability Comprehensive ... 4 units.7. Smart communication port.8. LCD/LED display.9. Cold start function.Parameters table of HT ... failureTransfer time0mSLCD/LED information and audible alarmStatusLoad percentage, battery state, utility state, inverter and bypass state, overload, system fault.Audible ...