ANSI C78.1500-2001 PDF
Defines the dimensional limits and other physical characteristics required to ensure interchangeability and assist in the proper application of TH lamps with P28 bases and 89 mm nominal light center length.
ANSI C78.1500-2001
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American National Standard for Tungsten Halogen (TH) Lamps with a Light Center Length of 89 mm (3 in.)
American National Standards Institute ,
Pages: 23
