From three years we have been using luminous single battery inverter at home but as the battery expired we have to purchase the new one this time we have decided to purchase dual battery set up so that it can give more working time during power cuts but when we went to inverter dealer for new inverter than he show us dual battery but say that it is old inverter so want be able to pick up high load and suggested us to go for hyundai u smart va inverter and we are little confused whether to purchase it or not. Firstly comparing to other it’s price is less and secondly the sales man told us that it had, 3 years of warranty then we purchased it and it went upto rs 6000 for inverter and rs 17000 for battery., but the service of such inverter are worst once the light has gone it starts own it own but light came back it does not switch off and after use of, 2-3 months it works for upto 6 hrs only and after a month it lead to problem to house electrical switches it some time provide huge load sometime very less which lead to damage to our refrigerator also