Lamp (electrical component)

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"Light bulb" redirects here. For other uses, see Light bulb (disambiguation).
"Electric lamp" redirects here. For the item of furniture, see light fixture.
Various compact fluorescent (CFL) lightbulbs
A clear glass 60 W Neolux light bulb

A lamp is a replaceable component such as an incandescent light bulb, which is designed to produce light from electricity.[1] These components usually have a base of ceramic, metal, glass or plastic, which makes an electrical connection in the socket of a light fixture. This connection may be made with a screw-thread base, two metal pins, two metal caps or a bayonet cap.

Types[edit]

There are several types of lamp:

Uses other than illumination[edit]

Lamps can be used as heat sources, for example in incubators and toys such as the Easy-Bake Oven.

Filament lamps have long been used as fast acting thermistors in electronic circuits. The filaments are most likely made out of tungsten. Popular uses have included:

Lamp circuit symbols[edit]

In circuit diagrams lamps usually are shown as symbols. There are two main types of symbols, these are:

The cross in a circle, which usually represents a lamp as an indicator. 
The semicircular dent in a circle, which usually represents a lamp as a source of light or illumination. 
Another Electronic symbol for Lamp 

See also[edit]

References[edit]

  1. ^ "Lamp". Dictionary.com. Retrieved Nov 9, 2014.