Electric Light

An electric light is a device that produces light by the flow of electric current. It is the most common form of artificial lighting and is essential to modern society, providing interior lighting for buildings and exterior light for evening and nighttime activities. Most electric lighting is powered by centrally generated electric power, but lighting may also be powered by mobile or standby electric generators or battery systems. Battery-powered lights, usually called "flashlights" or "torches", are used for portability and as backups when the main lights fail. The two main families of electric light are incandescent lamps, which produce light by a filament heated white-hot by electric current, and gas-discharge lamps, which produce light by an electric arc through a gas. The energy efficiency of electric lighting has increased radically since the first demonstration of arc lamps and the incandescent light bulb of the 19th century. Modern electric light sources come in a profusion of types and sizes adapted to a myriad of applications.

Read more about Electric LightTypes, Lamp Life Expectancy, Vendors, Public Lighting

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lighting" class="article_title_2">Electric Light - Public Lighting
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Joseph Swan - Electric Light
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Shoreham Power Station - History - Gloucester Road Power Station
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... that he had assisted experiments related to electric light, that he had got the idea and the basic concept of the design of an electric incandescent lamp from Professor Münchhausen ... in the Kingdom of Hanover in the 1830s and 1840s, there is no documentation of experiments on electric light in the Kingdom of Hanover in the 1840s and no source for ... knowledge when working for the American Electric Light Co ...

Famous quotes related to electric light:

    The more I see of democracy the more I dislike it. It just brings everything down to the mere vulgar level of wages and prices, electric light and water closets, and nothing else.
    —D.H. (David Herbert)

    Persons grouped around a fire or candle for warmth or light are less able to pursue independent thoughts, or even tasks, than people supplied with electric light. In the same way, the social and educational patterns latent in automation are those of self- employment and artistic autonomy.
    Marshall McLuhan (1911–1980)