When driving in fog, which lights should a driver use?

When driving in fog, using low beam headlights is the most appropriate choice. This is because low beam headlights provide sufficient illumination for the driver without causing excessive glare that can reflect off the fog, rain, or snow, which can significantly hinder visibility. High beam headlights illuminate at a greater distance and can create a blinding effect in foggy conditions, making it harder for both the driver and other road users to see.

Using fog lights alone may not be ideal because they are typically designed to supplement low beams, not replace them. They work best when used in combination with low beams to enhance visibility in thick fog. It is also important to have some form of light to increase your visibility to other drivers and to navigate safely. Therefore, the correct choice is the use of low beam headlights for safe driving in foggy conditions.