hi,
UPS is actually a external battery for any of ur electrical appliances, etc, computers. If there is a electric trip at home or office, the UPS will supply continue to supply power, about one to two hours depending on the amount of power is consumed. This is especially useful for those who have important data in your destop. Anyone interested can call me at 90297893. Everyone can use this UPS n it would b a value for money item.

Cheers