Historical
ANSI C78.79-2014
Electric Lamps - Nomenclature for Envelope Shapes Intended for Use with Electric Lamps
Describes a system of nomenclature that provides designations for envelope shapes used for all electric lamps. The purpose of the revision and re-designation of this standard is to include solid state light sources that are functional applications of traditional lamps.
Content Provider
NEMA: National Electrical Manufacturers Association [nema]