Input voltage: 220V:145~290Vac±5Vac
Output voltage: 220V:200~255Vac
Input frequency range: 50Hz / 60Hz (Auto sensing)
Output frequency (DC mode): 50±0.5Hz / 60±0.5Hz
Transfer time: Typical 2~6ms, Max.10ms
Battery low voltage protection
Auto re-starts when AC recovers