Universal C242UNVME001I 42W 42 Watt 120-277 VAC Electronic Compact Fluorescent Ballast\
https://www.shineretrofits.com/shop-lighting/ballasts/cfl-ballasts/universal-c242unvme001i-42w-42-watt-120-277-vac-electronic-compact-fluorescent-ballast.htmlUniversal's C242UNVME001I 42 watt electronic compact fluorescent ballast runs on 120-277 VAC, has a high power factor and a programmed rapid start. It's sound rated A, and adheres to cUL, FCC, ANSI, and NEMA standards