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Hello AriesBBY, this 1500VA Sine Wave 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. This is different from the CP1500PFCLCD, PFC stands for Power Factor Correction. The device is a UPS (Uninterruptible Power Supply) designed to work efficiently with modern power supplies that use Active Power Factor Correction.
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