When driving in fog, what type of headlights should you use?

Using low beam headlights when driving in fog is the appropriate choice because they help illuminate the road directly in front of you without causing excessive glare. Fog tends to reflect light back to the driver, and high beam headlights can worsen visibility by causing a blinding effect, as the light bounces off the fog and creates a "white wall."

Low beam headlights, on the other hand, provide sufficient lighting to see the road and other vehicles while reducing the scattering of light in the fog, which improves overall visibility. This allows drivers to see clearly without creating additional hazards for themselves or other drivers on the road. Additionally, fog lights can be beneficial when visibility is extremely low, but they are not always required or sufficient on their own.