A high-voltage rack/tower convertible UPS with line interactive topology and an adjustable output of either 220, 230 or 240 VAC, the CyberPower Smart App Sinewave PR1500ELCDRTXL2U provides battery backup, power protection (using sine wave output), and surge protection for corporate servers, department servers, storage appliances, network devices, and telecom installations requiring Active PFC power source compatibility. The PR1500ELCDRTXL2U 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.