GE 100W Mercury Vapor Bulb

GE, HR100DX38/MED, 100W, Deluxe White Mercury Vapor High Intensity Discharge Lamp, B17 Bulb Shape, Medium Base, MOL=5.43", H38 ANSI Ballast Type, 18,000 Hours, 4000 Initial Lumens, 3900 Kelvin Color Temperature, CRI=50.