If you're driving in fog, what lights should you use?

Using low beam headlights when driving in fog is essential for several reasons. High beam headlights can create a hazardous situation in foggy conditions because the light reflects off the water droplets in the fog, causing glare that can impair visibility. This means that, rather than illuminating the road ahead, high beams can make it harder for the driver to see.

Low beam headlights, on the other hand, are designed to provide adequate illumination of the road without causing excessive glare. They direct light down towards the road, helping to illuminate the lane directly in front of the vehicle while minimizing the amount of light that reflects back into the driver's eyes. This is crucial for maintaining visibility in fog, as well as for being seen by other drivers.

Parking lights and having no lights at all are not adequate for driving in fog. Parking lights do not provide enough illumination for safe driving, and not using any lights poses a significant risk of accidents, as other drivers would not be able to see your vehicle on the road.