*Input voltage range:145-275V
*Input Frequency:45~65HZ
*Output voltage range:220V±3%
*Output frequency(HZ):50(Battery mode)
*Output wave form:Sine wave
*Transfer time:≤4ms
*(AVR):Yes
*Battery type:12V/7.2AH×4
*Backup time:3-5 minutes
*Typical recharge time:10-16hours
*Battery protection:
Self-detect, protection against,over-charge and under voltage
*Size:545*193*270mm