Pure Sine Wave Uninterruptible Power Supply System is extensively used for providing power back up to domestic computers and its peripherals, emergency power systems and photography. The Power Supply System is compact in design and comes with long power back-up facility. The Power Supply System is based on OSCRC technology based charger and comes with wide charging window of 100 VAC - 280VAC. Pure Sine Wave Uninterruptible Power Supply System is strong and rigid in construction and requires minimal maintenance.