Tungsten is an element often found in cheaper light bulbs.
Mercury Vapor
Tungsten, as it burns long and brightly.
Argon(or nitrogen) and tungsten are used in incandescent light bulbs.
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Florine
Tungsten
Tungsten is an element. It is used in bulbs
tungsten <<>> Also along with the above, aluminium for the shell, steel for the filament holders, and in past years brass was used for the shell until manufactures found out it was cheaper to use aluminium for the job.
Usually tungsten.