. Both models feature Automatic Voltage Regulation (AVR). This feature instantly adjusts high & low voltage fluctuations to safe levels for connected electronics saving battery power for when you need it most during storms & outages. Equipped with 6 IEC sockets the 950/1400 keep your desktop computer monitor or other critical devices (router modem television etc.) running when the power goes out. Specifically designed for electronic equipment in harsh power environments the Back-UPS 950 & 1400 maximize productivity & work efficiency while providing critical power during emergencies..