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The reverse function was only achievable with the introduction of blue LEDs; by mixing red, green and blue LEDs in a defined distributed pattern behind a lens, white light was produced that conformed to the legal requirements of a reverse light. In North America, the 2000 Cadillac Deville was the first passenger car with LED taillights. [144]
Full-voltage vs. parking light headlamp on European-market Volkswagen, 2007. Depending on prevailing regulations and equipment, vehicles may implement the daytime-running light function by functionally turning on specific lamps, by operating low-beam headlamps or fog lamps at full or reduced intensity, by operating high-beam headlamps at reduced intensity, or by steady-burning operation of the ...
A "fitter" describes how the lampshade connects to the lamp base. The most common lampshade fitter is a Spider fitter. Spider fitters are set on top of a lamp harp, and secured with a finial. The harp is typically seated below the socket and two arms rise up around the light bulb and join at the top, where it provides resting support for the ...
Intelligent Light System is a headlamp beam control system introduced in 2006 on the Mercedes-Benz E-Class (W211) [153] which offers five different bi-xenon light functions, [154] each of which is suited to typical driving or weather conditions: Country mode; Motorway mode; Enhanced fog lamps; Active light function (Advanced front-lighting ...
UN Regulation 37 covers motor vehicle filament lamps. These are categorized in three groups: those without general restriction that can be used in any application, those acceptable only for signalling lights (not for road illumination lamps), and those no longer allowable as light sources for new type approvals but still permitted for production as replacement parts.
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]
The earliest electronic systems available as factory installations were vacuum tube car radios, starting in the early 1930s.The development of semiconductors after World War II greatly expanded the use of electronics in automobiles, with solid-state diodes making the automotive alternator the standard after about 1960, and the first transistorized ignition systems appearing in 1963.
Lamp harp with fluorescent bulb. A lamp harp is the component of a lamp to which the lamp shade is attached. It typically comes in two separate parts, a saddle which is fastened under the lamp socket, and the harp itself which consist of a lightweight frame attached to the saddle at its lower end and extending upwards to a point above the bulb.