Input voltage 220VAC Input frequency 50Hz Input phase. Single phase Input socket With Fuse Cold Start (0 to 100% load) Press the ON/OFF switchInput range (220V) 140V-300VRating output (VA). 650VARating output (W). 390WRating output (W). Battery mode(simulated sine wave), AC mode (sine wave)Power factor 0.6Rating voltage 220VOutput range 220Vac-7% 15% (in battery mode)Rear Output Socket 2xUniversal - Battery backup. Transfer time TYPICAL 4-8 msCommunication Interface NILRating frequency 50HzOutput Frequency Line-mode Synchronize with the Utility. Battery mode 50 Hz±1HzOutput Frequency Line Mode Synchronize with the utilityShort Circuit Protection Line Mode FUSE & firmware protection. Battery Mode Software protection controlled by firmwareOverload Protection Line Mode 110% -5% (Go to fault mode after 5 minutes), 120% -5% (Go to fault mode immediately)Battery Mode 110% -5% (Shutdown after 5 minutes)120% -5% (Shut down immediately). Rating frequency 12V/8.2AH x 1Backup Tim - Typical 10mins to 18mins(depending on load)Charge Current About 1A at normal modeOver Charge Protection 14.5V /- 0.2V stop chargingWeight 5.6kg /- 0.3KgDimension 390x 145 x 220 (mm)Master Carton 45.5x 40 x 23.5 (cm) (4pcs).