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A large number of light fixtures and lamps at a store.
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Ceiling light fixtures

A light fixture (US English), light fitting (UK English), or luminaire is an electrical device that contains an "electric lamp that provides "illumination. All light fixtures have a fixture body and one or more lamps. The lamps may be in sockets for easy replacement—or, in the case of some "LED fixtures, hard-wired in place.

Fixtures may also have a switch to control the light, either attached to the lamp body or attached to the power cable. Permanent light fixtures, such as dining room chandeliers, may have no switch on the fixture itself, but rely on a wall switch.

Fixtures require an "electrical connection to a power source, typically "AC mains power, but some run on battery power for camping or emergency lights. Permanent lighting fixtures are directly wired. Movable lamps have a "plug and cord that plugs into a wall socket.

Light fixtures may also have other features, such as "reflectors for directing the light, an "aperture (with or without a "lens), an outer shell or housing for lamp alignment and protection, an "electrical ballast or "power supply, and a shade to diffuse the light or direct it towards a workspace (e.g., a desk lamp). A wide variety of special light fixtures are created for use in the "automotive lighting industry, "aerospace, marine and "medicine sectors.

Portable light fixtures are often called lamps, as in table lamp or desk lamp. In "technical terminology, the lamp is the light source, which, in casual terminology, is called the "light bulb. The "International Electrotechnical Commission (IEC) recommends the term luminaire for technical use.

Contents

History[edit]

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Industrial light fixture, designed by "Peter Behrens, around 1915

Fixture manufacturing began soon after production of the "incandescent light bulb. When practical uses of fluorescent lighting were realized after 1924, the three leading companies to produce various fixtures were "Lightolier, "Artcraft Fluorescent Lighting Corporation, and Globe Lighting in the United States.[1]

Fixture types[edit]

Light fixtures are classified by how the fixture is installed, the light function or lamp type.

Free-standing or portable[edit]

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"Tiffany dragonfly desk lamp with pigeon sculptures

Fixed[edit]

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A "chandelier light fixture
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A decorative outdoor lamp at "Leeds Town Hall.
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A garden "solar lamp is an example of landscape lighting

Special-purpose lights[edit]

Lamp types[edit]

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Old table lamps at Archaeological Museum, Sri Lanka
"Xenon arc lamp, "Yablochkov candle
"Fluorescent lamp, "compact fluorescent lamp (CFL), "Induction lamp, "blacklight.
"Betty lamp, "butter lamp, "carbide lamp, "gas lighting, "kerosene lamp, "oil lamp, "rush light, "torch, "candle, "Limelight, "gas mantle
"Safety lamps: "Davy lamp & "Geordie lamp
"Mercury-vapor lamp, "Metal-halide ("HMI, "HQI, "CDM), "Sodium vapor or "high-pressure sodium"
"A-lamp, "Parabolic aluminized reflector lamp ("PAR), reflector lamp (R), bulged reflector lamp (BR) (refer to lamp shapes)
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Table Lighting

Light-fixture controls[edit]

See also[edit]

References[edit]

  1. ^ "Early industry leaders", of fluorescent fixture manufacturing, Paul Levy (1998)

External links[edit]

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