GE Multi-Vapor® PulseArc® Metal Halide Lamp, High Intensity Discharge, MXR70/U/MED Designation, 70 W Wattage, 85 VAC, Quartz Metal Halide Lamp, E26 Medium Screw Lamp Base, BD17 Shape, 5500 Lumens, 12000 hr Average Life, 55 CRI, 3500 K Color Temperature, Clear Lamp, Enclosed Fixture, 2.12 in Dia x 5.43 in L Dimensions