Lightwave 650va Power Back Up Ups

Input voltage: 220vac voltage range: 142-282vac frequency: >40hz (auto sensing), frequency: 50hz,frequency regulation (batt. mode) : +/- hz output voltage: 220vac, voltage regulation (battery mode): +/- 10% output waveform: modified sinewave battery type: 12v7ah x 1 backup time (at a pc load with 17* monitor): 10-40 minutes, recharge time: 6 hours to 90% after complete discharge, transfer time typical: 4-8 mins