SATCO® Compact Fluorescent Lamp, 18T2/41, 18 W, 120 VAC, 0.15 A, CFL Lamp, E26 Medium Lamp Base, T2 Mini Spiral, 1200 Lumens Initial, 10000 hr Average Life, Cool White, 82 CRI, 4100 K Color, Tri-Phosphor Lamp, Instant-On Start, Self Ballast, Enclosed Fixture, 360 deg Beam, 2.13 in Dia x 4.53 in L,