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2. List of automotive light bulb types - Wikipedia

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

   Bulb Type Trade Number Cap (Base) Filaments Nominal power @ 12.8v (High/Low beam where applicable) Comments Image HB1 9004 P29t 2 65 / 45 W HB2 9003 P43t-38 2 60 / 55 W H4 with stricter geometric tolerances HB3 9005 P20d (90°) 1 65 W HB3A 9005XS P20d (straight) 1 65 W HB3 w/180° straight base HB4 9006 P22d (90°) 1 55 W HB4A 9006XS P22d (180 ...

3. Headlamp - Wikipedia

   en.wikipedia.org/wiki/Headlamp

   Complex-reflector technology in combination with new bulb designs such as H13 is enabling the creation of European-type low and high beam patterns without the use of a Graves Shield, while the 1992 US approval of the H4 bulb has made traditionally European 60% / 40% optical area divisions for low and high beam common in the US.

4. 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 ...

5. Automotive lighting - Wikipedia

   en.wikipedia.org/wiki/Automotive_lighting

   The low and high beams, along with the position (parking) light and front turn signal, all use LEDs. The Lexus LS 600h (XF40) features LED low beam, position and side marker lights in North America, and the 2009 Cadillac Escalade Platinum used LEDs for

6. Tung-Sol - Wikipedia

   en.wikipedia.org/wiki/Tung-Sol

   A top most number as 1 indicates a high beam lamp and a 2 indicates a low or twin beam lamp. Only 5.75' lamps were high or low beam, whereas 7' lamps were twin beam lamp with the 2 on the top most edge of the headlight. About 1967, American Motors Corporation had Tung-Sol headlights on all their passengers vehicles up to October 1974 data.

7. Parabolic aluminized reflector - Wikipedia

   en.wikipedia.org/wiki/Parabolic_aluminized_reflector

   The following year in 1958, all states allowed the new system. Two of the lamps contained two filaments and served as low and high beam, while the other two lamps contained only one filament and were active only during high-beam operation. From the 1975 model year, a rectangular version of the four-lamp system was legalized.