. CyberPower CP900EPFCLCDThe CyberPower PFC Sinewave Series offers users from home to SMEs clean and stable battery backup while the featured RJ11/RJ45 port ensures phone fax and modem lines are protected from surges. Featuring Automatic Voltage Regulation (AVR) technology that helps to stabilise AC voltage and to provide protection to connected equipment. The multifunction LCD readout provides immediate access to precise information of critical power/battery condition..