![]() The electrical connection to the socket may be made with a screw-thread base, two metal pins, two metal caps or a bayonet cap. ![]() Lamps usually have a base made of ceramic, metal, glass, or plastic, which secures the lamp in the socket of a light fixture, which is often called a "lamp" as well. It is the most common form of artificial lighting. Joseph Swan and Thomas Edison (first demo of incandescent bulb in 1879)Īn electric light, lamp, or light bulb is an electrical component that produces light. Incandescent and compact fluorescent lamp turned on
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