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Fluorescent lighting systems spread rapidly during World War II as wartime manufacturing intensified lighting demand. By 1951 more light was produced in the United States by fluorescent lamps than by incandescent lamps. [24] In the first years zinc orthosilicate with varying content of beryllium was used as greenish phosphor. Small additions of ...
Incandescent light bulbs became the most common source of lighting for modern chandeliers in the 20th century, and a variety of electrical lights such as fluorescent light, halogen. LED lamp are also used. Many antique chandeliers not designed for electrical wiring have also been adapted for electricity.
In the 1970s, Thorn Lighting introduced an energy-saving 8 ft retrofit tube in Europe. Designed to run on the existing 125 W (240 V) series ballast but with a different gas fill and operating voltage, the tube operated at only 100 W. Increased efficiency meant that the tube produced only 9% lumen reduction for a 20% power reduction. [ 7 ]
Cove light – indirect lighting recessed into the ceiling in a long box against a wall. Troffer – recessed fluorescent light fixtures, usually rectangular in shape to fit into a drop ceiling grid. Chandeliers in the Bibliothèque Mazarine (Paris) Surface-mounted light – the finished housing is exposed, not flush with the surface.
A billiard or island light is a longer pendant fixture, usually with long fluorescent or multiple incandescent bulbs, used over kitchen islands and billiard tables. They are sometimes considered a type of chandelier. It is a key component to understanding architectural lighting design and sometimes associated with interior design.
A compact fluorescent lamp (CFL), also called compact fluorescent light, energy-saving light and compact fluorescent tube, is a fluorescent lamp designed to replace an incandescent light bulb; some types fit into light fixtures designed for incandescent bulbs.
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