ROBERTSON 3M10045 HP213P /B Fluorescent mBallast for 2 CFQ13W/GX23 CFL Lamps, Preheat Start, 120Vac, 60Hz, NBF, HPF (Item sold now in single quantities as ROBERTSON 3P10074 HP213P BM, Item now available in a 10 ea. Quik-Pak as ROBERTSON 2P10074)