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A daytime running lamp (DRL, also daytime running light) is an automotive lighting and bicycle lighting device on the front of a road going motor vehicle or bicycle. [1] It is automatically switched on when the vehicle's handbrake has been pulled down, when the vehicle is in gear , or when the engine is started, emitting white, yellow , or ...
Running lights may refer to: Lights on vehicles designed to increase visibility while moving - see: Daytime running lamp, for increased visibility of vehicles during the day; Automotive lighting, for running lights for cars; Bicycle lighting, for running lights for bicycles; Navigation light, for running lights for aircraft, ships and spacecraft
When it was initially published in 1968, [10] Motor Vehicle Safety Standard No. 108 was part of 49 CFR 371.21, incorporating several SAE recommended practices by reference. [11] The 1969 version of FMVSS 108 allowed the use of two headlamps, each 7 in (180 mm) in diameter, or four smaller 5 + 3 ⁄ 4 in (150 mm) headlamps. [11]: Table I
In practice, most vehicles were equipped with the dim-dip option rather than dedicated running lights. [43] The dim-dip systems were not intended for daytime use as DRLs. Rather, they operated if the engine was running and the driver switched on the position lights (called sidelights in the UK). Dim-dip was intended to provide a nighttime "town ...
The map of the aurora forecast shows that northern parts of the country have a better chance of seeing the auroras. A view line that shows "the southern extent of where aurora might be seen on the ...
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Red light on the back of a bicycle Early bicycle lighting: candle lamps, oil lamps and carbide lamps Early bicycle lamps and two early bottle dynamos (1935). Bicycle lighting is illumination attached to bicycles whose purpose above all is, along with reflectors, to improve the visibility of the bicycle and its rider to other road users under circumstances of poor ambient illumination.
These include headlights, which are used to illuminate the way ahead and make the car visible to other users, so that the vehicle can be used at night; in some jurisdictions, daytime running lights; red brake lights to indicate when the brakes are applied; amber turn signal lights to indicate the turn intentions of the driver; white-coloured ...