Designed for desktop use with computers, peripherals and telecom equipment. Provides standby UPS battery back-up protection against power failures. Built-in surge protection against voltage fluctuation and transient surges. Innovative eco outlets automatically power off peripherals when computer is turned off or when in sleep mode. Energy-efficient design has a 99% full load efficiency rating and cool operating temperature. Protection Type: DSL; Fax; Modem; Phone; Power; System VA: 550 VA; Backup Time at Half Load: 10 minutes @ 150 Watts; Lines: 1.