A tower Ups with line interactive topology, the CyberPower Smart App Sinewave PR2200LCD 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 PR2200LCD 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.Battery BackupSupplies power long enough for equipment to properly shut down when utility power fails. Helps prevent loss of data and minimizes the component stress caused by a hard shutdown.Surge ProtectionDiverts excess voltage away from sensitive electronic equipment during an Ac power surge or power spike to prevent damage.