Fluorescent Lamp, FB40T12/65K/9/U6/RS/G13/STD, 40 W, 2-Pin Medium G13 Lamp Base, T12 U-Bent, 2250 lm, 24000 hr Average Life, 90 CRI, 6500 K Color, Rapid Start, Tri-Phosphor Coated, 1-1/2 in Dia x 22-1/2 in L, 10 deg C Minimum Starting, 60 Hz Operating Frequency, Daylight Deluxe Light