Fluorescent Lamp, High Output, F64T12/CW/HO, 80 W, 120 VAC, Linear Lamp, Recessed Double Contact R17d Lamp Base, T12, 5600 lm, 12000 hr Average Life, 60 CRI, 4100 K Color, Rapid Start, Cool White, 1-1/2 in Dia x 64 in L, Applications: For commercial and residential use