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ANSI C78.44-2016
Electric Lamps - Double-Ended Metal Halide Lamps
Sets forth the physical and electrical requirements for double-ended metal halide lamps operated on 60 Hz ballasts to ensure interchangeability and safety.This revision includes the addition of a 2000 Watt, M134 Double-Ended Metal Halide Lamp.
NEMA: National Electrical Manufacturers Association [nema]