Tripp Lite's LC 1200 Line Conditioner provides automatic voltage regulation for computers, copiers, laser printers, fax machines and other sensitive electronic equipment. 1,200 watts of voltage regulation correct brownouts and overvoltages (87 to 140 volts) back to computer-grade 120 volt AC.The unit has 4 outlets, 6-ft. cord, diagnostic LEDs, and built-in surge and noise suppression. Isolated filter banks stop interference between connected equipment. The item is supplied with $25,000 Ultimate Lifetime Insurance.