The CyberPower Smart App Sinewave UPS 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 active PFC power source compatibility. It 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.