Look for this symbol to help you find the headlights in your car. These lights allow the driver to see the roadway in the dark, while also signaling to other motorists that a car is present. BMW claims the laser headlights, used for the high beam setting, can reach a distance of 600 metres. Car headlights were once comparatively simple affairs – a bulb, a reflective bowl and a glass front. The dipped headlights are next, and should be used when visibility is compromised by the onset of darkness, or by adverse weather such as rain, fog or snow. Rarity and expensiveness are clearly the two main drawbacks of laser headlights nowadays, but it’s a technology worth keeping an eye on. Position your car. Many higher-spec and high end cars come with xenon headlights as standard, rather than as an optional extra, but given that the pros outweigh the cons, there should be no doubt about buying a car with them. Full beam headlights Image source: Angus Gray (via Unsplash) As you'd expect from the name, your full beam headlights are the brightest set of car lights in your arsenal. CarShop stock a wide range of used cars in 9 showrooms across the UK. Each bulb temperature, measured in kelvins (K), creates a different light colour. In the UK and the rest of the EU, cars with HIDs are required to also have headlight washers and a self-levelling system. BMW and Audi were among the first manufacturers to introduce laser headlights with the i8 sports car and R8 LMX respectively. Night (the hours of darkness) is defined as the period between half an hour after sunset and half an hour before sunrise). The resulting white glow is attractively powerful. Unlike dipped headlights, full beam headlights are much higher and are designed to help you see as much of the road ahead as possible. While better than nothing, a couple of well-placed tealights would have rivalled many of them for illuminating power. However, there are newer, more energy-efficient alternatives available – halogen emits heat as well as light. Car headlights were once comparatively straightforward affairs, consisting of a bulb, a reflective bowl and a glass front. Look for this symbol to help you find the headlights in your car. LEDs not only look modern, but at the higher end of the market offer something commonly referred to as matrix technology. Cars in the US only have red tail-lights, and no blue lights; a vehicle displaying a red (forward-facing) light (flashing or not) coming towards a driver, or from behind the driver (in rear view mirror) indicates that an official emergency vehicle is coming, requiring the driver to yield, pull off to the side of the road, or otherwise get out of its way. In the UK you have to have at least one rear fog light, though many cars - especially more expensive models - come with front fog lights as well. All rights reserved.Auto Express™ is a registered trade mark. How soon will the next breakthrough come? Click here to see our range. Do use your fog lights if you’re driving in fog. ... Headlight legislation. LED HEADLIGHTS According to the letter of UK law, HID xenon lights are not permitted. This is necessary because dirt and dust can scatter the light and blind other motorists. Sit inside any modern car like our A6 Allroad and you'll be surrounded by technology. Projector headlights are newer, but not every new car has projector headlights. Early car headlights were simple affairs – a bulb, a reflective bowl and a glass front. The main reason for this is initial cost and cost of repair/replacement. Car lights law detailing the various offences obtained from defective car lights and any potential fines. What are halogen headlights and how do they work? 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