I purchased desktop PC about three years ago along with Numeric Digital 600 EX V ups.It was wonderful and durable till today it works very well. During the time of light cut offs it supports my PC for about 40 minutes it is sufficient time to save your work on computer and very easily we get time to shut down the computer.
During the light fluctuations it works properly and does create any loss to PC.I purchased it specially for my computer use only .And it is really work as I hope. I think that it is the best ups in the others ups.So I would like to use in the future.