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A light fixture (US English), light fitting (UK English), or luminaire is an electrical lighting device containing one or more light sources, such as lamps, and all the accessory components required for its operation to provide illumination to the environment. [1] All light fixtures have a fixture body and one or more lamps.
The history of electric light is well documented, [11] and with the developments in lighting technology the profession of lighting developed alongside it. The development of high-efficiency, low-cost fluorescent lamps led to a reliance on electric light and a uniform blanket approach to lighting, but the energy crisis of the 1970s required more design consideration and reinvigorated the use of ...
As demand for the fixtures grew, Kelly began manufacturing reproduction vintage lighting in a Portland factory and selling it nationally through a mail-order catalog. A website was added in 1997, followed by a store in Seattle in 2004, [ 3 ] and a Los Angeles store located in the Helms Bakery buildings in late 2011, [ 4 ] along with a Berkeley ...
In November 2011, the company acquired Portland, Oregon-based Rejuvenation, a manufacturer and direct marketer of light fixtures and hardware with stores in Portland, Seattle, and Los Angeles. [21] The company launched a lifestyle brand offering personalized products, Mark and Graham, in November 2012.
An important property of light fixtures is the luminous efficacy or wall-plug efficiency, meaning the amount of usable light emanating from the fixture per used energy, usually measured in lumen per watt. A fixture using replaceable light sources can also have its efficiency quoted as the percentage of light passed from the "bulb" to the ...
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