As I stay in an area where electricity goes off frequently. So it is difficult for me to study or carry our any activity or work during night. So I had decided to buy this inverter. It is worth Rs 8, 000 and had one year warranty. After using it for a year I am totally disappointed with the overall performance of this inverter. The efficiency of the inverter is very less. After charging it for a day it works continuously for maximum three hours. Also while it is on and when charging it makes disturbing noise. Apart from this, the inverter is heavy and also it can be displaced. The inverter wiring is not properly done. It has to be used with great care and little mishandling can damage this inverter. There are very few service center for this inverter in Mumbai and also repairing cost is high. I suggest not to buy this inverter because of its poor performance and low efficiency.