NEMA - National Electrical Manufacturers Association
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NEMA ANSLG C78.44-2016
Scope
This standard sets forth the physical and electrical requirements for double-ended metal halide lamps operated on 60 Hz. ballasts to ensure interchangeability and safety. The data given also provides the basis for the electrical requirements for ballasts and ignitors@ as well as the lamp-related requirements for luminaires. This standard includes lamps whose arc tubes are made of quartz or ceramic materials. Luminous flux and lamp color is not part of this standard.