I brought my Microtek UPS SEBz 1100 six months ago.And I would like to share my experience about the inverter.This inverter is a very powerful one.It withstands upto 6 hours when I use 3 ceiling fan, one led tv and 4 tubelights and 1 led bulb.It has no noise and it is user friendly too.This inverter works uninterruptly.Till date I got no problem in this inverter.And I also got 2 year warranty with it. and at last I would recommend this inverter strongly. Hope my review will help you.