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Bulbs used for headlamps, turn signals and brake lamps may be required to comply with international and national regulations governing the types of lamps used. Other automotive lighting applications such as auxiliary lamps or interior lighting may not be regulated, but common types are used by many automotive manufacturers.
In 1909, Wagner Electric started manufacturing their first automotive headlamp bulbs. Wagner Electric Company Strike, May 3, 1918. The International Association of Machinists held a strike at the Wagner Electric Company in St. Louis, Missouri from June 4 to October 7, 1918. [1] [2] Before it became part of a conglomerate, Wagner had three main ...
The incandescent light bulb was for a long time the only light source used in automotive lighting. Incandescent bulbs are still commonly used in turn signals to stop hyper-flashing of the turn signal flashers. Many types of bulbs have been used. Standardized type numbers are used by manufacturers to identify bulbs with the same specifications.
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]
Download as PDF; Printable version; ... Pages in category "Automotive lamps" ... List of automotive light bulb types;
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]
If the bulb you are holding in your hand has a trade name, it's going to be "Sylvania" or "Wagner" or "General Electric" or any of several others. The designations in question (9004, 9005, 9007, etc.) are trade numbers and must be referred to as such, because we are writing an encylopædia to describe the world as it is, not as we might wish it ...
At the end of life, many types of high-intensity discharge lamps exhibit a phenomenon known as cycling. These lamps can be started at a relatively low voltage . As they heat up during operation, however, the internal gas pressure within the arc tube rises and a higher voltage is required to maintain the arc discharge .