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  2. Headlamp - Wikipedia

    en.wikipedia.org/wiki/Headlamp

    The high beam is usually a rough copy of the low beam, shifted slightly upward and leftward. The European system traditionally produced low beams containing less overall light, because only 60% of the reflector's surface area is used to create the low beam. However, low beam focus and glare control are easier to achieve.

  3. Daytime running lamp - Wikipedia

    en.wikipedia.org/wiki/Daytime_running_lamp

    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 ...

  4. Automotive lighting - Wikipedia

    en.wikipedia.org/wiki/Automotive_lighting

    UN ECE regulations for dipped beam headlights specify a beam with a sharp, asymmetric cut-off; the half of the beam closest to oncoming drivers is flat and low, while the half of the beam closest to the outside of the road slopes up and towards the near side of the roadway. This permits a functional compromise where it is possible to ...

  5. List of automotive light bulb types - Wikipedia

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

    ECE nominal luminous flux: 26/1350 ±10% Low-wattage filament for DRL function H16 1 12 V: 19 W PGJ19-3 H16B 1 12 V: 19 W PGJY19-3 H21W 1 12 V & 24 V: 21 W BAY9s H27W/1 1 12 V: 27W PG13 USA ANSI № 880 H27W/2 1 12 V: 27 W PGJ13 USA ANSI № 881 HB3 1 12 V: 60 W P20d 90° USA, Japan ANSI № 9005 ECE nominal luminous flux: 1700 lm ±15% HB3A 1

  6. Headlights are blinding us. Here’s why it’s mostly an ...

    www.aol.com/headlights-blinding-us-why-mostly...

    In Europe and Asia, many cars offer adaptive driving beam headlights that can do this. ADB is a lighting technology that has been available for many years in other parts of the world including ...

  7. Headlamp tester - Wikipedia

    en.wikipedia.org/wiki/Headlamp_tester

    A headlight tester comprises a fully adjustable single optical collimated light lens assembly which is typically mounted on a vertical column or rail. The assembly is adjusted vertically to the actual height of the headlamp, which is typically around 500mm for passenger vehicles, but can be significantly higher for heavy goods vehicles (HGVs).

  8. American drivers are finally getting high definition ... - AOL

    www.aol.com/finance/american-drivers-finally...

    After nearly a decade of petitions, the NHTSA is giving the OK to ADB (Adaptive Driving Beam). American drivers are finally getting high definition headlights (adaptive driving beam) [Video] Skip ...

  9. Parabolic aluminized reflector - Wikipedia

    en.wikipedia.org/wiki/Parabolic_aluminized_reflector

    Between 1940 and 1956, all U.S. cars had to have two 7-inch (178 mm) round headlamps with dual filaments, so each lamp provided both a high and a low beam light distribution. In 1957, a system of four sealed-beam headlamps—two per side, of 5 + 3 / 4 inches (146 mm) diameter, was allowed in some U.S. states. The following year in 1958, all ...

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