Capacity 1200VA. 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 30 minutes,Half Load 40 minutes. Protection Automatic self-test, Over discharge protection, short circuit protection by fuse. Net Weight 8.7 kg. AC Normal Indicator GREEN. Battery Charging AMBER. 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