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UN Regulation 37 covers motor vehicle filament lamps. These are categorized in three groups: those without general restriction that can be used in any application, those acceptable only for signalling lights (not for road illumination lamps), and those no longer allowable as light sources for new type approvals but still permitted for production as replacement parts.
It also made aiming the headlight beams simpler and eliminated non-standard bulbs and lamps. [17] The Tucker 48 included a defining "cyclops-eye" feature: a third center-mounted headlight connected to the car's steering mechanism. [18] It only illuminated if the steering was moved more than ten degrees off center and the high beams were turned ...
FMVSS 108 is codified in Title 49 of the Code of Federal Regulations Part 571, Section 108. [1] The most recent version was published by NHTSA for comment in December 2007, [2] and since then, it has been amended in April 2011, [3] August 2011, [4] January 2012, [5] December 2012, [6] December 2015, [7] February 2016, [8] and February 2022.
Beginning in the early 1990s, HID lamps have seen applications in automotive headlamps. Xenon, or high-intensity discharge (HID), lighting provides brighter headlights and increases visibility of many peripheral objects (e.g. street signs and pedestrians) left in the shadows by standard halogen lighting.
The first Ford Model T used carbide lamps for headlights and oil lamps for tail lights. It did not have all-electric lighting as a standard feature until several years after its introduction. Dynamos for automobile headlights were first fitted around 1908 and became commonplace in 1920s automobiles.
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]