Size: 1500VAA mini-tower UPS with line interactive topology, the PFC Sinewave OR1500PFCLCD provides power protection (using sine wave output) and surge protection for department servers, workgroup servers, network devices, telecom appliances, and high-end audio/video equipment requiring PFC power source compatibility. The OR1500PFCLCD uses Automatic Voltage Regulation (AVR) to correct minor power fluctuations without switching to battery power, which extends battery life. AVR is essential in areas where power fluctuations occur frequently. The OR1500PFCLCD comes with a three-year warranty and a $200, 000 Connected Equipment Guarantee.