incandescent light bulb
electric light bulb with a resistively heated wire filament
AI overview
An incandescent light bulb is an electric light that works by heating a thin wire filament until it glows and produces light. It matters because it was a foundational technology that made electric lighting practical and affordable for homes and businesses.
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Article
A 230-volt incandescent light bulb with a medium-sized E27 base. The coiled filament is visible between the vertical supply wires.
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.