ANSI C78.21:2022
Current
Current
The latest, up-to-date edition.
American National Standard for Electric Lamps—PAR and R Shapes
Available format(s)
Hardcopy , PDF
Language(s)
English
Published date
22-12-2022
This standard provides physical and electrical characteristics of the group of incandescent lamps that have PAR and R bulb shapes.
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