ANSI/NEMA C78.21-2003

Provides physical and electrical characteristics of the group of incandescent lamps that have PAR and R bulb shapes. Covers lamps with clear, frosted and lens end bulbs, clear and prescription lenses, and with various reflector coatings are covered.

This product replaced by:ANSI/NEMA C78.21-2011 - American National Standard for Incandescent Lamps - PAR and R Shapes

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ANSI/NEMA C78.21-2011
ANSI/NEMA C78.21-2003

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