Lighting time is the time from sunset to sunrise or otherwise, when the use of the vehicle's lights due to darkness, fog, mist, rain or similar poor visibility or light conditions is required either to make the vehicle visible to other road users or to give the driver sufficient field of vision.
"Reduced visibility" means all conditions in which visibility is reduced by fog, thickening, snowfall, heavy rain showers, sandstorms or other similar causes.
When the visibility is less than 100 meters it is dense fog. There are approximately 100 meters between the marking poles on the side of the road. If you can't see 100 meters ahead, it's time to turn on the fog lights. Or if you find it difficult to see the car in front of you, then others behind you probably also have difficulty seeing your car, so you can switch on your rear fog light.
It is a legal requirement to have at least one rear fog light that lights up red. It is permitted to have two rear fog lights.
Front fog lights are not found on all cars, but they are good to use in dense fog because their light shines down under the fog and your light is less reflected by the fog and gives you better visibility than ordinary dipped beam. Do not use high beam headlights in dense fog.
Remember to switch off the fog lights again when visibility is better, fog lights are very sharp and quite blinding.
If you do not know how to switch the fog lights on and off, park your car in a place where the light does not disturb other road users, and check where you switch the various lights on and off. Get out of the car and see what happens, because when you need them, you need to know immediately how to turn the fog lights on and off.
It is your responsibility to use the fog lights and use them correctly. Improper use can result in a fine and, in the worst case, lead to an accident. It's about being able to see and be seen by other road users. Slow down if there is poor visibility and always adjust your speed to the conditions.