To drive in **light fog**, it is important to know which lights to use to improve visibility and safety. In this case, the **front fog light** should be turned on.

- The **front fog lights** are designed to improve the driver's visibility in conditions of fog, snow, heavy rain, or smoke. These lights can be white or yellow and are used together with the position lights, high beam, or low beam.

- On the other hand, the **rear fog lights** are red and are intended for situations of very low visibility, such as dense fog. These lights are not necessary in light fog conditions, as their use is reserved for when conditions are extremely bad and visibility is very reduced.

Therefore, in the case of light fog, it is only necessary to turn on the **front fog light** to ensure safe driving without dazzling other drivers.