... control Wide input voltage range Advanced PFC technology Self-testing when UPS start-up Advanced battery charge in UPS off mode Lightning and ... down after 1s. Crest Factor 3:1 Short Circuit UPS turn off output and alarm Battery Type 12V7Ah Voltage 35Vdc ... LED Utility, Inverter, Bypass, Battery, Load, Battery Mode, Frequency, UPS Fault Indicator Audible Alarm-Battery Discharge Utility Failure, Beep/4s ...