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  2. List of automotive light bulb types - Wikipedia

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

    T5 size WY2.3W W2×4.6d 1 12 V: 2.3 W Amber W3W ... entry 49 CFR 564 in the Code of Federal Regulations requires manufacturers of headlight bulbs, ...

  3. H1 lamp - Wikipedia

    en.wikipedia.org/wiki/H1_Lamp

    Under ECE Regulation 37, which governs automotive filament lamps in most of the world, the H1 lamp's nominal rating is 55 W at 12 V, and its test rating is 68 W (maximum) and 1550 ± 15% lumens at 13.2 V. R37 also contains provisions for 6 V, 55 W and 24 V, 70 W H1 lamps. [1]

  4. Headlamp - Wikipedia

    en.wikipedia.org/wiki/Headlamp

    This headlamp format was not widely accepted in continental Europe, which found replaceable bulbs and variations in the size and shape of headlamps useful in car design. Technology moved forward in the rest of the world. [7] [8] In 1962 a European consortium of bulb- and headlamp-makers introduced the first halogen lamp for vehicle headlamp use ...

  5. Automotive lighting - Wikipedia

    en.wikipedia.org/wiki/Automotive_lighting

    Typically, bulbs of 21 to 27 watts producing 280 to 570 lumens (22 to 45 mean spherical candlepower) are used for stop, turn, reversing and rear fog lights, while bulbs of 4 to 10 W, producing 40 to 130 lm (3 to 10 mscp) are used for tail lights, parking lights, side marker lights and side turn signal repeaters.

  6. Halogen lamp - Wikipedia

    en.wikipedia.org/wiki/Halogen_lamp

    The small size of halogen lamps permits their use in compact optical systems for projectors and illumination. The small glass envelope may be enclosed in a much larger outer glass bulb, which has a lower temperature, protects the inner bulb from contamination, and makes the bulb mechanically more similar to a conventional lamp. [1]

  7. Parabolic aluminized reflector - Wikipedia

    en.wikipedia.org/wiki/Parabolic_aluminized_reflector

    Two Mercedes-Benz SLs: right with US-spec sealed-beam headlamps; left with European-spec composite replaceable-bulb headlamps In the United States of America, sealed-beam headlamps were introduced in 1939, becoming standard equipment across all American-market vehicles starting in 1940 and remaining the only type allowed for almost four and a ...

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