GreenPower UPS Power System with green AVR offers up to 75 percent energy savings. Patented GreenPower UPS bypass technology conducts power through a relay, bypassing the transformer. When utility power is abnormal, the GreenPower UPS technology switches to battery or AVR mode and operates the same as a conventional UPS. Design includes an LCD screen, 600 watts, 1000 VA rating, and eight outlets with UPS and surge protection. UPS power system delivers 11 minutes of backup time and provides telephone/DSL protection. Cables are sold separately.