ROBERTSON 3P20058 PSA224T5MV /A Fluorescent eBallast for 2 F24T5HO Linear Lamps, Program Start, 120-277Vac, 50-60Hz, Normal Ballast Factor, HPF Equivalent to: Philips-Advance ICN2S24, Osram-Sylvania QTP2X39, Universal B224PUNVC Equivalent to: Keystone KTEB-224HO-UV-PS-SL, Hatch HL224HO/PS/UV/S, Fulham RH3UNV226K Save and order the 2P20058 Quik-Pak of 10 units individually packaged Save the most with the 5P20058 carton of 10 units, not individually packaged Go to RobertsonDirect.com for complete technical data.