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ANSI C78.21-2022

American National Standard for Electric Lamps—PAR and R Shapes

Standard Details

Owner: Erbesfeld, Michael Product Areas: Lighting Systems Divisions: LS - Lighting Products & Systems ESPG Category: Lighting Description: This standard provides physical and electrical characteristics of the group of incandescent lamps that have PAR and R bulb shapes. Lamps with clear, frosted, and lens end bulbs, with clear and prescription lenses, and with various reflector coatings are covered. Lamps covered in this standard may contain either of two basic types of light sources: an incandescent filament or a tungsten halogen inner bulb. Sunlamps and heat lamps of the R type are included. Lamps with discharge arc tubes are not included. This revision adds the R16 lamp to the C78.21 Standard, thus allowing the lighting industry to manufacture these lamps based upon a common set of specifications.

General Information

Status : ACTIVE
Standard Type: Main
Document No: ANSI C78.21-2022
Document Year: 2022
Pages: 43
  • Section Volume:
  • LS LS - Lighting Products & Systems

Life Cycle

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ANSI C78.21-2022
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