What should you use when driving in fog for better visibility?

Using low beam headlights when driving in fog is important because they are designed to illuminate the road directly in front of you without causing excessive glare. Fog can reflect light back toward the driver, which can happen with high beam headlights. This reflection can obscure visibility further and create a dangerous situation. Low beam headlights provide sufficient illumination while minimizing the light's reflection, helping drivers to see the road and any obstacles clearly.

While fog lights are specifically engineered for foggy conditions and improve visibility in such situations, they are an additional set of lights used in conjunction with low beams rather than a replacement. Parking lights should not be used for driving as they do not provide adequate illumination for safe driving. Therefore, when navigating through fog, low beam headlights are the most effective and safest choice to ensure clear visibility.