CyberPower’s CP900AVR has a simple-to-use interface with just two buttons (energy on/off and mute) and 4 indicator lights (showing in the event the device is turned on, if the battery backup kicks in, when AVR is activated, and when there’s a power overload) on the front of the unit. Photograph: https://waxandcopureskin95936.bluxeblog.com/68443091/detailed-notes-on-ups-battery-price-in-sri-lanka