The Tripp Lite LC1200 1,200-Watt 120-Volt Line Conditioner adjusts under- and overvoltages to provide safe, computer-grade AC power. The automatic voltage regulation (AVR) offers 3 levels of voltage stabilization that corrects undervoltages as low as 89-Volt and overvoltages as high as 147-Volt back to regulated 120-Volt nominal power. Providing optimum voltage conditions not only extends the life of your equipment, but also keeps your equipment working through brownouts and prolonged overvoltage conditions. The network-grade surge suppression prevents even the strongest spikes from inflicting damage, data loss or corruption and audio/video performance problems on your connected equipment. Noise filtering removes potentially disruptive line noise. Just connect the space-saving NEMA 5-15P right-angle plug with 7 ft. cord to an AC power source, and plug up to 4 devices into the NEMA 5-15R outlets. You can monitor AC power, incoming voltage level and AC line status using the 7 diagnostic LEDs on the front panel. The compact LC1200 will fit comfortably into your computer or home theater setup.