Philips Circline Fluorescent Lamp, Non-Dimmable, FC16T9/COOL WHITE PLUS Designation, 40 W Wattage, 0.42 A, Fluorescent Lamp, 4-Pin G10Q/G22 Lamp Base, 406.4 mm Overall Diameter, T9 Shape, 2500 Lumens, 12000 hr Average Life, Cool White, 90 CRI, 4100 K Color Temperature, 347.7 mm ID Dimensions,