What is the advisable action to take when driving in light fog?

When driving in light fog, it is advisable to slow down and use low beams. This is crucial because low beams are designed to provide illumination closer to the road without causing glare that can reflect off the fog, rain, or snow and impair visibility even further. Reducing your speed allows for more reaction time and enhances safety, as visibility is often significantly reduced in foggy conditions.

Using high beams in fog can create a blinding effect, as the light from the high beams reflects off the moisture in the fog, making it even harder to see. It's essential to have proper visibility, and low beams help achieve this by casting a wider and shorter beam of light. This ensures that drivers can see the road and any potential hazards more effectively.

Maintaining the speed limit may not be safe in light fog, as the reduced visibility often necessitates slower driving. Additionally, turning off headlights completely is not advisable since it can make the vehicle less visible to others on the road, increasing the risk of accidents. Driving with proper lighting and at a safe speed in foggy conditions is critical for ensuring both your safety and the safety of others.