Keystone Technologies 75-Watt 1 or 2-Lamp T12 8 ft. Instant Start Electronic Fluorescent Replacement Ballast

Keystone Technologys T12 Instant Start electronic ballast is designed to operate 1 or 2 T12 lamps. Featuring 120-Volt-277-Volt input and high power factor design. See the document below for complete specifications including additional lamp wattages compatible with this ballast.|Sound rated: A|Minimum starting temperature: 0 degree F, -18 degree C|Maximum case temperature: 167 degree F, 75 degree C|Meets FCC part 18 (class B) consumer limits|Transient protection meets ANSI/IEEEC62.41 Cat. A|Ballast frequency for all listed lamps: 20KHz-33KHz