Power Fluctuations is one of the serious consideration when working on a PC. Apart from losing your data, it could also damage your PC and other machines. If this is likely your concern too, then you should simply Buy an UPS.

UPS could be just be understood as a stabilizer that provides your computer an Uninterruptible power supply during Voltage fluctuation preventing damage the systems and other peripherals as well. Apart from this backup time also provides you enough time to save your work which have spent the hard labour on.

A few careful considerations would help choose a good one of this peripheral. The first thing to look for would be the Battery Backup time. A 500VA or 600VA would be ideal for home use which would give give a backup of anywhere in between 5 to 10 minutes considered enough to save the files you are working on. If you are working on heavy file like on images or videos that take more time to save, you would rather opt for a higher VA rated one which you could check from the specs of the particular model and judge the best one that would suit you. An Automatic Voltage Regulator feature in the UPS could be more helpful in regulating and stabilizing the input voltage , thus protecting your machine.

Buying this product is not an arduous job whatsoever. The VA and the backup time right should suffice in most cases but also try to have a check on the quality of cell each of the brand is using which would help it with a long life. Commercial UPS however needs more factors to be considered.