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

Using low beam headlights is essential when driving in fog because they are designed to provide adequate illumination without causing excessive reflection. In foggy conditions, high beam headlights can actually worsen visibility. This is due to the light reflecting off the water droplets in the fog, creating a glare that can make it harder for the driver to see.

Low beam headlights, on the other hand, project light down towards the road instead of directly out in front. This helps to minimize the amount of light that reflects back at the driver while still illuminating the road adequately for safe navigation.

Fog lights can enhance visibility in heavy fog by focusing on the road immediately in front of the vehicle, but they are intended to be used in conjunction with low beams rather than exclusively. Parking lights are not sufficient for driving in fog, as they do not provide enough illumination for safe travel on the road.