ROBERTSON 5P20064 PSL232T8MV3D/A Bulk-Pak of 10 Fluorescent Step Dimming eBallasts for 2 F32T8 Linear Lamps, Program Start, 120-277Vac, 50-60Hz, Normal Ballast Factor, HPF Equivalent to: Philips-Advance REZ-232-SC, Universal B232SR120S, B232SR277S Program Start, Step Dimming (EasyDim), 2 Lamp, T8 (F32T8), HPF, 120-277Vac. Also available as a Quik-Pak of 10 units individually packaged as 2P20064 Also available as a single quantity as 3P20064 Go to RobertsonDirect.com for complete technical data.