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How To Get Fog Out Of Headlights

Admit it, you've never used your fog lights. Would you even know where to find them on the dashboard?

Don't worry, a lot of us need reminding about what our various lights do and when to use them.

Here's our helpful guide to explain everything you need to know about car lights.

What are the different types of lights?

There are several lights on our cars: indicators that double up as hazard lights, tail lights that sit next to brake lights, and headlights that we can set to different modes.

Read on to find out what lights you'll find on your vehicle and what they do.

Dipped headlights

Dipped headlights are the most commonly used headlights; brighter than sidelights, but not as bright as full beam headlights.

They get their name as they are angled downwards, towards the road. The switch to turn them on is usually found on a dashboard dial or twisted indicator stalk, although many newer cars have running lights that work without input from the driver.

When to use dipped headlights

The highway code says, "You must use headlights when visibility is seriously reduced", with 'seriously reduced' defined as when you are able to see less than 100m in front of you.

This means they should be turned on at night-time and during bad weather.

Full beam headlights

Car-headlights-full-beam

Full beam headlights are the brightest type of headlight on normal vehicles.

They are angled higher than dipped headlights, allowing you to see more of the road, and are sometimes known as high beams.

The switch to turn them on is usually found near the switch for dipped headlights and they may use a different set of bulbs.

When to use high beams

You should only use full beam headlights on unlit stretches of road at night.

When meeting oncoming traffic (including cyclists or pedestrians), following another vehicle, or driving on left-turning bends, you must turn off full beam headlights as they can often be dazzling and may cause accidents.

Fog lights

fog-lights-symbols-icons-button

Fog lights are designed to cut through fog and mist, unlike full beam lights that are reflected by fog.

They usually come in two sets, front and back, with the switches coloured coded: amber for rear fog lights and green for front fog lights.

In most cars you'll need to turn your dipped headlights on before pressing or twisting the fog light switch.

When to use fog lights

You should only use your fog lights when visibility is below 100 metres. To use a classic British measurement putting it in perspective: that's roughly the length of a football pitch.

It's important not to use your fog lights when visibility is better than that, as you risk dazzling other drivers.

Read more: Driving in fog - when to use fog lights

Hazard warning lights

car-lights-guide-hazard

Your hazard lights can be seen at all corners of your car - they're the lights usually used as your indicators.

The blinking amber lights are used to warn other drivers of danger or obstructions on the road, and the dashboard button is indicated with a triangle shape as shown above.

When to use hazard warning lights

You should only use your hazard lights if your vehicle is stationary, to warn others that you're causing a temporary obstruction.

This may happen when you've had an accident, broken down or been forced to stop by an obstruction.

You may also use your hazard lights if you are on a motorway and there is an obstruction up ahead that you need to warn other drivers about.

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Indicators

car-lights-guide-indicator

Indicators take up the same position as your hazard warning lights, visible on all corners of your car.

The blinking amber lights are turned on and off down one side of your car using your indicator stalk. They also automatically turn off once you straighten your wheels after making a turn.

When to use indicators

Sidelights/parking lights

Parking_lights

Car sidelights, or parking lights as they are sometimes known, are usually found in the headlamp unit in the front corners of your car.

Sidelights aren't as bright as headlights, so are used by drivers to make themselves visible to traffic during times when it's not dark enough for main lights.

The switch to turn them on is usually found on a dashboard dial or twisted indicator stalk.

When to use sidelights/parking lights

The Highway Code says that all vehicles must display parking lights or sidelights when parked on a road (or lay-by) with a speed limit over 30mph. They are designed to be left on for long periods of time when you leave your car and shouldn't drain your battery.

If the road has a speed limit of 30mph or less, you don't need to use your sidelights, as long as:

  • your spot is a recognised parking bay or lay-by, or
  • you're facing in the direction of the traffic flow, close to the kerb, and at least 10 metres from the nearest junction

Sidelights must also be switched on if your vehicle, for unavoidable reasons, is parked on any road in fog.

Read more: Parking lights – what are they and when should I use them?

Tail lights

Tail lights are red and found on the back of your car. They're turned on/off at the same time as your headlights.

So, whether you manually turn on your headlights or they work automatically, they will illuminate either way.

Brake lights

Brake lights are also red and are located near your tail lights. They illuminate to show other drivers that you've applied your brakes and are slowing down.

You should make sure they're kept clean and working at all times. Aside from the safety risks involved, a faulty brake light could see you pulled over by the police and given:

  • A verbal warning
  • A fixed penalty notice – including a £60 fine and three points on your licence
  • A Vehicle Defect Rectification Notice – 14-day order to fix the fault and provide proof of the fix

In serious circumstances your car could even be taken off the road immediately.

  • Penalty Charge Notices -what are they and can you appeal?
  • Fixed Penalty Notices: all you need to know

Car headlight bulb types

With cars changing like never before, it's no surprise that their lights are also evolving.

As manufacturers consider the environmental impact of their work, energy efficient solutions have become more popular on our vehicles. Advances in technology have given us three common bulb types:

  • halogen
  • light emitting diodes (LED)
  • xenon/high intensity discharge (HID)

Halogen headlights

Halogen lights are the most popular kind on our roads today. They use a combination of gases - usually nitrogen and argon – and a tungsten filament in a glass tube.

Once the filament is heated, light is produced. They are cheap and easy to replace, but have fallen out of favour in recent years.

A standard Halogen bulb will produce 1300 Lumen, a good level of light but dimmer than other options.

The unnecessary and unused heat generated by halogen makes it incredibly inefficient and as light isn't focused, illumination of the road isn't as bright as it could be.

LED headlights

LED stands for 'light emitting diodes' and is currently the most energy efficient system widely available.

With a short rise time – the time it takes to turn on – they work over 250 times faster than halogen, making it the perfect system for brake and indicator lights.

The long-lasting light source is small and can be arranged into a variety of designs, which gives manufacturers a lot more flexibility with their designs. These directional lights are brighter than halogen bulbs of the same wattage as well.

LEDs produce a small amount of heat at the emitter when electricity passes through and require cooling systems to avoid damage to nearby cables. Cooling systems are generally positioned in the engine bay.

With a number of human-made components, LEDs are expensive in comparison to halogen bulbs.

Xenon headlights

Xenon high intensity discharge (HID) headlights heat gases and rare metals to generate a bright white or blue glow.

They are up to three times brighter than halogen bulbs with the same wattage. HID lamps need more power to start up than halogen but operate at a much lower power usage, with a greater lifespan.

HID headlights are very distinctive when you see them out on the road, but they've failed to become an industry standard for a few reasons. Among these are the cost of the rare metals needed to produce them, their uncontrolled brightness which often causes glare for other drivers, and the time they take to reach full brightness.

There you have it: more information about car lights than you'll probably ever need. Want to make sure yours all work? Here's how:

Get 30 driving tips that will save you money

Get 30 driving tips that will save you money

How To Get Fog Out Of Headlights

Source: https://www.rac.co.uk/drive/advice/know-how/car-lights-and-headlights-what-they-are-and-when-to-use-them/

Posted by: foltzabsetiley.blogspot.com

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