What must you use when closely following another vehicle at night?

When closely following another vehicle at night, it is essential to use low-beam headlights. This is important for a few reasons.

Low-beam headlights provide adequate visibility for the driver without causing glare for the vehicle in front. High-beam headlights can illuminate a greater distance, but they also create significant glare for the driver ahead, which can be distracting and dangerous. This glare can affect the ability of the driver in front to see clearly and safely continue driving.

Fog lights are specifically designed to illuminate the road immediately in front of the vehicle in low-visibility conditions such as fog or heavy rain, and they should not be used for regular driving at night behind another vehicle. Turning signals are strictly for indicating a driver's intent to turn or change lanes and do not relate to visibility requirements while driving at night. Therefore, when driving closely behind another vehicle at night, using low-beam headlights is the safest and most considerate choice for ensuring safety on the road.