Incandescent light bulb
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 Original carbon-filament bulb from Thomas Edison. |
An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light which produces light with a filament wire heated to a high temperature by an electric current through it, until it glows (see Incandescence). The hot filament is protected from oxidation in the air with a glass bulb that is filled with inert gas or evacuated. In a halogen lamp, filament evaporation is prevented by a chemical process that redeposits metal vapor onto the filament, extending its life. The light bulb is supplied with electrical current by feed-through terminals or wires embedded in the glass. Most bulbs are used in a socket which provides mechanical support and electrical connections.
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| Incandescent Light Bulb's Bulb and Base Types Expl... Incandescent Light Bulb's Bulb and Base Types Explained www.servicelighting.com/.../catalog_bulb_finder_bbt_incandescent.cfm - Web |
| Great light bulbs gallery Great light bulbs gallery www.bulbmuseum.eu - Web |
