Keystone Technologys CFL rapid start electronic ballast is designed to operate 1 or 2 CFL lamps. Featuring 120-Volt to 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, minus 18 degree C
Maximum case temperature: 167 degree F, 75 degree C
Meets FCC part 18 (class B) consumer limits
Transient protection meets ANSI/IEEE C62.41 Cat. A
Ballast frequency for all listed lamps: 20KHz-33KHz