My dad had bought this inverter for 15000 in 2012. It works very good. It has 48 months of warranty period. But it is still working very good. And it is in very good condition right now. During first three years, it worked very good. In the light gows off, the supplied voltage was more powerful and was a little bit high as compared to the main supply of the electricity board.
But now, the power of voltage has gown down. It requires a battery water which is to be given after every interval of 3-4 months for efficient working. It works for approx 3-4 hours when the light gows off. It can run 3-4 fans and many led bulbs. I am truly impressed by its working. And if it will stop working, I will recommend my day to buy this inverter again. Because its very easy to use and it is a durable one.