We have a luminous inverter. It is nearly 8 years old. It gave us a well service in all these years. But couple of months ago it’s battery got ruined up completely. So we decided to buy a new one from it’s site, luminous.com. The site is very good and easy to use. The battery we ordered from this site took only 5 days to arrive. The customer service is very reliable. So I would suggest everyone to use this site.