Main Features: LED Display, Load Capacity: 390W, Input Voltage: 145-280V, Output Voltage: 220/230 VAC +/-10%, Frequency (Battery Mode): 50/60Hz +/-5%, Battery: Lead-Acid Maintenance-Free, Alarm: Beeping Alarm, Indications: AC Mode (Green), Battery Mode (Red), Over Load (Yellow), Backup Time: 5-40 Minutes, Wave Type: Modified-Sinewave, Transfer Time: 2-6 ms Typical, Warranty: 1 year. Address: H-119, Greater Road (East Side Of Nagor Bhoban) Ghoramara, Rajshahi. For more information, please visit newcomputercity.com