I am a Microtek ups user for past 5 years. I am using Microtek UPS 850EB. The product is good without those fancy LCD display and temparature sensor. This microtek ups has minimalist features like input voltage selector( 100-300 or 180-260), battery voltage selector & battery current selector. Some companies like Su-kam luminous ups has features like charging cpbility at voltage as low as85-90VAC unlike microtek ups which goes into battey mode at that voltage. Dont fall for that, no doubt it is good feature but it is aslo true that no electronic product runs at voltage below 100VAC so if you need to run than u need voltage stabilizer. So dont such inverter. Go for microtek digital inveters .