APC by Schneider Electric Back-UPS BX800L-LM 800VA - 800 VA/400 W - 120 V DC - Tower - 4 x NEMA 5-15R Battery Backup with Surge Protection for Computers and ElectronicsThe Back-UPS 800 and 1000 from APC by Schneider Electric protect your computer and electronic equipment from damaging power outages, surges and spikes while providing short term battery power during an outage. The 800 and 1000 feature Automatic Voltage Regulation (AVR), which instantly adjusts high and low voltage fluctuations to safe levels for your electronics saving battery power for when you need it most during storms and power outages. Equipped with NEMA 5-15R sockets, the BX800L-LM and BX1000L-LM keep your desktop computer, monitor or other critical devices (router, modem, television, etc.) running when the power goes out. Specifically designed to devices (router, modem, television, etc.) running when the power goes out. Specifically designed to protect electronic equipment in harsh power environments, the Back -UPS 800 and 1000 ensure maximum productivity and work efficiency.