A rack/tower Ups with line interactive topology, the CyberPower Smart App Lcd OR1500LCDRT2U provides battery backup (using simulated sine wave output) and surge protection for department servers, workgroup servers, workstations, network devices and telecom installations without active Pfc power supplies. The OR1500LCDRT2U 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 OR1500LCDRT2U comes with a three-year warranty and a $300,000 Connected Equipment Guarantee.