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  2. List of automotive light bulb types - Wikipedia

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

    The specifications supplied by the manufacturer, on approval by NHTSA, are entered in Federal docket NHTSA-1998-3397. [7] From then on, any light source made and certified by any manufacturer as conforming to the specifications is legal for use in headlamps certified as conforming to Federal Motor Vehicle Safety Standard 108. Light sources for ...

  3. H1 lamp - Wikipedia

    en.wikipedia.org/wiki/H1_Lamp

    Under ECE regulations, H1 lamps are required to emit white or selective yellow light. [1] U.S. regulations require H1 lamps to emit white light. [2] Under both ECE and U.S. specifications, the allowable range of white light is quite large; some H1 lamps have a slight blue or yellow tint to the glass yet still produce light legally acceptable under the requirement for white light.

  4. Headlamp - Wikipedia

    en.wikipedia.org/wiki/Headlamp

    Though conceptually similar to European headlamps with non-standardized shape and replaceable-bulb construction, these headlamps conform to the headlamp design, construction, and performance specifications of US Federal Motor Vehicle Safety Standard 108 rather than the internationalized European safety standards used outside North America ...

  5. Halogen lamp - Wikipedia

    en.wikipedia.org/wiki/Halogen_lamp

    To reduce unintentional ultraviolet (UV) exposure, and to contain hot bulb fragments in the event of explosive bulb failure, general-purpose lamps usually have a UV-absorbing glass filter over or around the bulb. Alternatively, lamp bulbs may be doped or coated to filter out the UV radiation. With adequate filtering, a halogen lamp exposes ...

  6. Talk:List of automotive light bulb types - Wikipedia

    en.wikipedia.org/wiki/Talk:List_of_automotive...

    That is the original version. P15d-25-1 is the bulb's base (formally called the 'cap'). P = prefocus, 15 = minor diameter, d = two electrical contacts, 25 = major diameter, 1 = variant. M5 is the other bulb standard, it's halogen, and they seem to be compatible so I'm using that one. They aren't in the ECE 37. I dunno about H6.

  7. Fluorescent-lamp formats - Wikipedia

    en.wikipedia.org/wiki/Fluorescent-lamp_formats

    Fluorescent lamps in various embodiments. Since their introduction as a commercial product in 1939, many different types of fluorescent lamp have been introduced. Systematic nomenclature identifies mass-market lamps as to overall shape, power rating, length, color, and other electrical and illuminating characteristics.

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