Lamp, Shatter-Resistant, Metal Halide, MHC100C//PS/U//MP/4K/ELITE (PKX12), 100 Watts, 103 Volts, 8700 Initial Lumens, 1 Amps, 4000 K, 87 CRI, Inside Frost Finish, M140/M90/O Ballast, pulse start Start Type, ED17 Shape, Medium (E26) Base, 20000 Avg Life Hr, PFA Coating