ANSI C78.260-2002 (S2018) covers the dimensional limits and other physical characteristics required to ensure the commonality, interchangeability and proper application of tubular TH lamps.





ANSI C78.260-2002 (S2018)
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American National Standard for Electric Lamps- Tubular Tungsten-Halogen Lamps, Physical Characteristics
American National Standards Institute , 02/15/2018