UPS POWER PAC 650VA Black Offline Capacity :  650VA Voltage (on battery)       :  Simulated sine wave at 100V / 220V / 240V +/- 8% --- AVE control with PWM Frequency (on battery) :  50 or 60Hz +/- 1Hz Transfer Time                    :  4 microseconds (Typical) Input Voltage (single phase + N)  :  100V / 110V +/-20%, 120V -20%, +15% 220V / 230V / 240V, 160V ~ 270V at line input Overload Protection  :  UPS automatic shutdown if overload exceeds110% at 10 seconds, 130% at 3 seconds Short Circuit                  :  UPS output cut off immediately Spike Protection          :  460 Joules, (8/20?s) Battery Type  :  Sealed, maintenance-free lead acid batteries Typical Recharge Time (to 90% of full capacity) :  6 Hours Back-up Time ( PC with 15?? monitor) :  Full Load 12 minutes, Half Load 16 minutes Protection  :   Automatic self-test, Over discharge protection, short circuit protection by fuse Net Weight kg    : 5.7 kg AC Normal Indicator : GREEN Battery Charging        :  AMBER UPS POWER PAC 650VA Black Offline Back Up Indicator      :  RED Ambient Operation   :  3,500 meters max. elevation, 0-95% humidity (No-condensing water), 0-40 deg Audible Noise              : 40dBA (1 meter from surface) Warranty : 1-year