What Lights to Use When Driving in Fog?
4 Answers
When driving in fog, use fog lights, low beams, and position lights, but avoid using high beams. The following rules should be observed in foggy conditions: 1. When visibility is less than 200 meters, turn on fog lights, low beams, position lights, and front and rear position lights, and the speed should not exceed 60 kilometers per hour; 2. When visibility is less than 100 meters, turn on fog lights, low beams, position lights, front and rear position lights, and hazard warning flashers, and the speed should not exceed 40 kilometers per hour; 3. When visibility is less than 50 meters, turn on fog lights, low beams, position lights, front and rear position lights, and hazard warning flashers, and the speed should not exceed 20 kilometers per hour. When driving in fog, visibility is poor, and fog lights have strong penetration, so fog lights must be turned on. If there are no fog lights, low beams can be used as a substitute. This helps inform other vehicles of your position, and position lights should also be turned on.
In foggy conditions, I always turn on the fog lights. Last winter during a trip, the fog was so thick that even road signs were barely visible, so I immediately activated the rear and front fog lights—their low beams can penetrate the fog without reflecting glare like high beams do. At the same time, I reduced my speed to under 50 km/h and maintained a safe distance from the vehicle ahead, as reaction times are slower in such weather. I also make it a habit to turn on the position lights to alert following vehicles. Fog lights are typically yellow or white, designed to minimize light reflection and scattering. Accidentally using high beams can make the fog appear denser and reduce visibility further. Remember, safety always comes first—if the fog is too heavy, it’s best to find a safe spot to pull over and wait. Regularly checking the vehicle’s lighting system is also essential to ensure the fog lights function properly and avoid risks from sudden malfunctions.
When driving in fog, I always turn on both the front and rear fog lights. These lights provide dispersed and soft illumination, avoiding the harsh glare of high beams that can reflect off the fog and reduce visibility. I also use parking lights to make my vehicle more noticeable to others. Fog lights are specifically designed for low-visibility conditions, with their beams adjusted lower to minimize reflection. In foggy weather, I prepare in advance, as suddenly activating fog lights can quickly alert drivers behind me. During such conditions, I also reduce speed, pay extra attention to road markings, and maintain a safe following distance. Choosing the right type of lights is crucial, as using the wrong ones can lead to serious accidents. Additionally, keeping fog lights clean is important, as fog tends to accumulate dust that can diminish their brightness.
When driving in foggy conditions, I turn on the fog lights—both the rear and front fog lights need to be used. The diffused light from fog lights effectively penetrates the fog, reducing visual interference. Avoid using high beams, as the intense light will reflect off the fog, creating a blinding whiteout that makes it impossible to see ahead. I also turn on the position lights for additional visibility. At the same time, it's essential to reduce speed, maintain a safe following distance, and avoid sharp turns. Road conditions in foggy weather are complex, and adjusting the lights is just the first step—safe driving habits are the core. Ensure the vehicle's lighting system is well-maintained to prevent malfunctions. If the fog is too dense, it's best to pull over and wait for safer conditions before continuing.
