When driving in fog, what lights should you use?

Using low beam headlights when driving in fog is crucial for maintaining visibility and safety. High beam headlights can reflect off the moisture in the fog, creating a blinding effect that reduces your ability to see clearly and can also impair the vision of other drivers. Low beam headlights are designed to project light downward toward the road and create a wider, shorter beam, which allows you to see the road better without excessive reflection.

Additionally, parking lights and fog lights alone may not provide sufficient illumination for safe driving in dense fog conditions. Parking lights generally do not provide enough light for visibility and are intended for stationary vehicles. While fog lights can help illuminate the road immediately in front of the vehicle, they are most effective when used in conjunction with low beam headlights, especially in very low visibility scenarios. Thus, low beam headlights remain the best choice for driving in foggy conditions.