Input Capacity Voltage Range : 140 - 300VAC Frequency : 50Hz/60Hz (Auto-sensing) Phase : Single + GND Battery Type : 12V/8.2AH - 2 pcs Backup Time : 8 - 30 mins depending on load Recharge Time : 2- 4 hours recover to 90% capacity Output Capacity Voltage Range : 230VAC Frequency : 50Hz (Battery Mode) Transfer Time : 2ms typical