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

Using low beam headlights is the recommended option when driving in fog because they provide adequate illumination without causing glare that can impair your visibility and that of other drivers. High beams tend to reflect off the moisture in fog, rain, or snow, creating a bright white wall of light that makes it difficult to see ahead. Fog lights are designed to illuminate the road immediately in front of your vehicle and can be effective in very low visibility conditions, but they are typically used in conjunction with low beams rather than as a substitute. Daytime running lights, while increasing visibility for other drivers, do not provide sufficient illumination of the road ahead and do not light the way adequately in foggy conditions. Therefore, low beam headlights strike the right balance between improving visibility without the negative effects associated with high beams and ensuring safety while driving in fog.