I share my bad experience with luminous UPS . When I purchase it then found that the battery capacity is very poor it is just because afterwards 4 day it cannot gives backup so I contact to company for this inquiry they says that(battery has add more carbon it is your fault because sometimes you charge it at large time) and in reality is not correct I charge it according to mannul which company provided to me.
So my experience with my personal opinion that don't buy it use any other Company UPS such as intex UPS because I found that backup quality is very well and the body and warranty is also good.