Sylvania 22W T5 Pentron Circline Fluorescent Bulb - FPC22/830 - Description: 22W, T5 Pentron Circline fluorescent lamp, 3000K color temperature, rare earth phosphor, 82 CRI. Average Rated Life (hr) 12000, Base 2GX13 Bulb T5, Manufacture Sylvania. Part number Sylvania-20702 Sylvania 22W T5 Pentron Circline Fluorescent Bulb - FPC22/830