PLG series Backup/Standby/Interactive is in standby status with batteries being charged in normal AC time. When the power
supply unexpectedly shuts down, the built in inverter will in no time convert the battery output into AC to keep stable power supply.
The UPS is generally considered high rate, low noise while running and cost effective, mostly used in comparably stable
environment with a small fluctuation of utility power and lower requirement of power supply quality.