Maintain productivity when the power goes out. All seven outlets provide surge, lightning & circuit-overload protection for attached devices, in addition to five providing battery-operated backup power as soon as electrical service is interrupted. USB port provides charging convenience. Three wide-spaced outlets permit the use of transformer-based plugs. Audible alarms notify you of changing utility power & UPS conditions. The LED status display indicates On Line, On Battery & Building Wiring Fault conditions. Protection Type: Power; System VA: 650 VA; Backup Time at Half Load: 10.3 min @ 180 W; Automatic Voltage Regulation (AVR): No.