Maximum adjustable power (W) 400 W/650 VA Efficiency at full load 80,0 % Output frequency (network synchronization) 47-63 Hz Network synchronization, 50/60 Hz +/- 1 Hz Unsynchronized Other output voltages 220 V Topology Support Signal type Stepwise approximation of a sine wave Transfer time 6 ms is typical: 10 ms maximum Input frequency 47-63 Hz Input voltage range for basic operations 180-266 V Efficiency at full load 80,0 % Battery Type Lead-acid battery Rated battery voltage 12 V Expected battery life (years) 2-5 Battery power (W) 7.5 kW USB Interface Port(s) The Control Panel LED status display with load and battery histograms, as well as online indicators: Battery power: Battery replacement: and overload indicators. Pulse energy rating 310joules Maximum height 120 mm, 12.0 cm Maximum width 130 mm, 13.0 cm Maximum depth 365 mm, 36.5 cm