ROBERTSON 3P20021 PSA232T8HEMV/A Fluorescent eBallast for 2 F32T8 Linear Lamps, Program Start, 120-277Vac, 50-60Hz, Normal Ballast Factor, HPF, NEMA Premium Equivalent to: Philips-Advance RCN2S32SC, IOP2S32SC, Osram-Sylvania QTP2X32T8UNVPSNTC Equivalent to Universal B232PUNVHEA, B232PUNVHPA, B232PUNVDRA, Fulham WHP2UNVT8PS, Espen VE232MVHIPE Equivalent to , General Electric GE232MVPSN; Replaces the Robertson Worldwide ballast RER2LT8120 Save and order the 2P20021 Quik-Pak of 10 units individually packaged Save the most with the 5P20021 carton of 10 units, not individually packaged