53974 is a 900W uninterruptible power supply (UPS) manufactured by QOLTEC. It measures 370 mm in length, 135 mm in width, and 165 mm in height. It has a 1.5 kilovolt-ampere (kVA) rating and weighs 10.5 kilograms. It has a 9 ampere-hour (Ah) capacity and an output frequency of 50 hertz (Hz).