CyberPower’s CP900AVR has an easy-to-use interface with just two buttons (electric power on/off and mute) and 4 indicator lights (showing once the unit is turned on, if the battery backup kicks in, when AVR is activated, and when there’s an influence overload) over the entrance with the device. Image: Michael https://condonearme82581.slypage.com/36949420/the-greatest-guide-to-ups-battery-price-in-sri-lanka