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incandescent light bulb — latest news, discussion & facts — IJR

incandescent light bulb

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incandescent light bulb

electric light bulb with a resistively heated wire filament

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About incandescent light bulb

An incandescent light bulb, also known as an incandescent lamp or incandescent light globe, is an electric light that produces illumination by Joule heating a filament until it glows. The filament is enclosed in a glass bulb that is either evacuated or filled with inert gas to protect the filament from oxidation. Electric current is supplied to the filament by terminals or wires embedded in the glass. A bulb socket provides mechanical support and electrical connections.

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Facts from Wikidata (CC0). Image by KMJ via Wikimedia Commons (CC BY-SA 3.0).