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After replaceable halogen bulbs were permitted in US headlamps in 1983, the development of US bulbs continued to favor long bulb life and low power consumption, while European designs continued to prioritise optical precision and maximum output. [90] The H1 lamp was the first tungsten-halogen headlamp light source. It was introduced in 1962 by ...
[2] [3] [4] Tail lights and brake lights were introduced around 1915, and by 1919, low-beam or dipped beam headlights were available. Sealed beam headlights were introduced in 1936 and standardized as the only acceptable type in the US in 1940. Self-cancelling turn signals were developed in 1940. By 1945, headlights and signal lights were ...
c. 1885 Incandescent gas mantle invented, revolutionises gas lighting. 1886 Great Barrington, Massachusetts demonstration project, a much more versatile (long-distance transmission) transformer based alternating current based indoor incandescent lighting system introduced by William Stanley, Jr. working for George Westinghouse. [6]
This is an accepted version of this page This is the latest accepted revision, reviewed on 18 December 2024. Device for producing light from electricity For other uses, see Electric light (disambiguation). "Electric lamp" and "Light bulb" redirect here. For the furniture, see light fixture. For the album, see Lightbulbs (album). For the film originally titled "Lightbulb", see Ingenious (2009 ...
Acetylene gas lamps were used to illuminate buildings, as lighthouse beacons, and as headlights on motor-cars and bicycles. Portable acetylene gas lamps, worn on the hat or carried by hand, were widely used in mining in the early twentieth century. They are still employed by cavers, hunters, and cataphiles.
A headlamp, headlight, or head torch is a light source affixed to the head typically for outdoor activities at night or in dark conditions such as caving, orienteering, hiking, skiing, backpacking, camping, mountaineering or mountain biking.
In Europe and Asia, many cars offer adaptive driving beam headlights that can do this. ADB is a lighting technology that has been available for many years in other parts of the world including ...
The popularity of this feature has waxed and waned over time. Hidden headlamps regained popularity in the mid-to-late 1960s, first in Europe but particularly in the US where aerodynamic headlamps were not permitted. A relatively large variety of cars incorporated hidden headlamps in the 1970s, 1980s, 1990s, and up to the early 2000s.