I had purchased the Luminous UPS along with my computer in year 2013 and from the first day I came to know that it only provide a backup of 5 to 7 minutes to the computer. We have to plug the UPS in the power forever and the battery takes a long time to charge after we use it one time. The Luminous UPS looks good and its durable also but the main thing is the battery which provide backup to the computer and the battery is not at all good.
After I used it for 6 months the battery failed to work it was showing me red light every time because of which a lot of important data was lost. The UPS is not at all user friendly because the plugs are located on the back of the UPS making it difficult to remove the switches of cpu and other components when we need to remove.