The CyberPower CP1350PFCLCD PFC Sinewave UPS Systems with pure sine wave output and multifunction LCD safeguards mid- to high-end computer systems, servers and networking hardware that use conventional and Active Power Factor Correction (PFC) power supplies. Its Automatic Voltage Regulation (AVR) technology delivers clean and consistent AC power, protecting connected equipment and preventing costly business interruptions. This UPS system is ENERGY STAR® qualified with patented GreenPower UPS™ Bypass circuitry to save on energy costs by reducing energy consumption and heat buildup. CyberPower's PFC Sinewave UPS Systems with pure sine wave output solves the critical compatibility issues of non-sine wave UPS products working with computing systems using Active PFC power supplies (ENERGY STAR 5.0). With PC manufacturers adopting high-efficiency Active PFC power supplies-your equipment may be at risk. CyberPower's innovative PFC Series UPS is an affordable solution that ensures equipment utilizing Active PFC power supplies do not unexpectedly shutdown or experience harmful stress when switching from AC power to UPS battery power.