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  2. List of automotive light bulb types - Wikipedia

    en.wikipedia.org/wiki/List_of_automotive_light...

    Bulbs used for headlamps, turn signals and brake lamps may be required to comply with international and national regulations governing the types of lamps used. Other automotive lighting applications such as auxiliary lamps or interior lighting may not be regulated, but common types are used by many automotive manufacturers.

  3. Headlamp - Wikipedia

    en.wikipedia.org/wiki/Headlamp

    The bulb's rotative position within the reflector depends on the type of beam pattern to be produced and the traffic directionality of the market for which the headlamp is intended. This system was first used with the tungsten incandescent Bilux/Duplo R2 bulb of 1954, and later with the halogen H4 bulb of 1971. In 1992, US regulations were ...

  4. Sylvania Electric Products - Wikipedia

    en.wikipedia.org/wiki/Sylvania_Electric_Products

    Sylvania Electric Products. Sylvania Electric Products Inc. was an American manufacturer of diverse electrical equipment, including at various times radio transceivers, vacuum tubes, semiconductors, and mainframe computers such as MOBIDIC. They were one of the companies involved in the development of the COBOL programming language.

  5. Osram Sylvania - Wikipedia

    en.wikipedia.org/wiki/Osram_Sylvania

    Osram Sylvania Inc. is the North American operation of lighting manufacturer Osram. It was established in January 1993, with the acquisition of GTE 's Sylvania lighting division by Osram GmbH. [1] In 2016, Osram spun off its general lighting business to Ledvance which received a license to sell lighting products under the Osram and Sylvania names.

  6. Havells Sylvania - Wikipedia

    en.wikipedia.org/wiki/Havells_Sylvania

    Havells Sylvania. Sylvania Lighting (formerly Feilo Sylvania [1] ), Havells-Sylvania, and SLI ( Sylvania Lighting International ), is an international designer and manufacturer of lighting products, trading as Sylvania. It has plants throughout Europe, Asia, North Africa and Central and South America, and is one of the few lighting companies ...

  7. Electroluminescence - Wikipedia

    en.wikipedia.org/wiki/Electroluminescence

    Electroluminescence. Electroluminescence ( EL) is an optical and electrical phenomenon, in which a material emits light in response to the passage of an electric current or to a strong electric field. This is distinct from black body light emission resulting from heat ( incandescence ), chemical reactions ( chemiluminescence ), reactions in a ...

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