Worst inverter. Review on Su-Kam Pure Sine Wave

I purchased this inverter as in our locality electricity goes off suddenly. So it has became difficult for us to carry out any activity in night. This inverter had one year warranty. From starting it didn't worked well. This inverter has to be used with great care and little mishandling can damage this inverter. The main problem the inverter has is that it don't charge properly. When kept on charging mode it suddenly stops charging. Another problem is that it makes noise while working and it disturb us. Also the efficiency is not to good. After charging for a full day, it runs out of power within three hours. Apart from this the inverter don't have any service Centre. Also the repairing cost from outside is too high and one has to throw this device if got damaged. I suggest not to buy this inverter as it is not that efficient although it is costly.