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The low beam is the headlight you turn on at dusk and dawn to illuminate the road ahead. The light reaches about 165 to 197 feet. It gives you better visibility without dazzling oncoming traffic.

When you turn on the low beam, the front headlights and rear taillights illuminate. If your vehicle is heavily loaded, it may be a little lower. The angle of the light cone changes and can dazzle oncoming traffic. You need to readjust the headlights.

A low beam is a headlight setting that provides a low, focused light to help you see the road ahead in darkness or poor visibility. Low beams should be used whenever possible to avoid dazzling other drivers.

A low beam typically provides a light intensity of between 800 and 1,200 candela. This is significantly lower than the high beam setting, which can produce up to 5,000 candela. Low beams are usually created using a halogen bulb, which is a type of incandescent bulb that uses less power than other types of bulbs.

Low beams are usually used in conjunction with high beams. When approaching another vehicle from the rear, it is polite to dip your headlights to low beam so as not to dazzle the other driver. Some newer vehicles have an automatic headlight dipping feature that will do this for you.

what is a low Beam symbol

Low beam light sumbol

When do I have to switch on the low beam?

You must switch on the low beam in the following situations:

  • at dusk and at night;
  • in poor visibility conditions due to rain, snow, or fog;
  • in tunnels, in parking garages, and when towing.

You can also switch on the low beam during the day as an alternative to a daytime running light. However, it does not replace this because it illuminates the road and not oncoming traffic. It also consumes more energy.

Low beam headlights must be used when driving at night or in conditions of poor visibility, such as fog. They must also be used during the day when there is insufficient light to see clearly, such as in tunnels. When approaching or overtaking another vehicle, low beam headlights must also be used.

High beam headlights can be used in all of the above situations except when approaching or overtaking another vehicle, when they must be switched to low beam.

The law regarding headlights is different in each state and territory, so it’s best to check with your local road authority. Generally speaking, however, low beam headlights must be used at night or in conditions of poor visibility, such as fog.

They must also be used during the day when there is insufficient light to see clearly, such as in tunnels. When approaching or overtaking another vehicle, low beam headlights must also be used. High beam headlights can be used in all of the above situations except when approaching or overtaking another vehicle, when they must be switched to low beam.

In some states and territories, it is also a legal requirement to have your headlights on during the day, even if there is plenty of daylight. This is because daytime running lights make it easier for other drivers to see your vehicle.

If you’re not sure about the law in your state or territory, the best thing to do is to err on the side of caution and switch your headlights on whenever it’s getting dark or visibility is poor.

So, to recap: you should use your low beam headlights at night, in poor visibility, in foggy conditions, and during the day when it’s getting dark or visibility is poor. You should also use them when approaching or overtaking another vehicle.

To learn more about Low Beam Lights, check this video below.

Low Beam Light Demonstration Video

David Muench (Carnes Mechanical)

David Muench (Carnes Mechanical)

Hey, I’m David. I’ve worked in a cars store for 6 years. I write reviews and guides, helping people to choose the most suitable technicals and best product for them. I’m happy to finally share my knowledge of the industry here, on CarnesMechanical.

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