This is most selling product in inverter.i personally using microtek inverter and you dont believe that its is working last 7 years.And we are very happy to buy it.Its battery backup is upto 1 whole day with full load. its stabliser is awesome. this is the perfect company for the inverter.In this you dont need to do any things it all parts are genuine and of good and best quality.if you want to buy inverter so just brieng it.