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ANSI C78.21-2011 (R2016)

Electric Lamps - PAR and R Shapes

Covers lamps with clear, frosted and lens end bulbs, clear and prescription lenses, and with various reflector coatings. Lamps described in this standard may contain incandescent filament or a tungsten halogen inner bulb.


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NEMA: National Electrical Manufacturers Association [nema]


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