Sylvania Powerball® Metalarc® Ceramic Metal Halide Lamp, Single Ended Tubular, MC39T6/U/G12/830, 35 W, 93 VAC, Metal Halide Lamp, G12 Medium Lamp Base, T6, 3700 Lumens Initial/2720 Lumens Mean, 15000 hr Average Life, 2940 K Color, Clear Lamp, Pulse Start, C130/E Ballast, Enclosed Fixture, 0.748 in Dia x 3.94 in L