Philips Ceramalux® ALTO® U-Bent Fluorescent Lamp, Type TL, FB32T8/TL841/6/ALTO 20PK Designation, 32 W Wattage, Fluorescent Lamp, Bi-Pin G13 Medium Lamp Base, T8-6U Shape, 2800 Lumens, 20000 hr Average Life, Green, 85 CRI, 4100 K Color Temperature, Rapid Start, 25.4 mm Dia x 22.44 in L Dimensions