What is the function of car fog lights?
2 Answers
Front fog lights are installed on the front of the car at a position slightly lower than the headlights, used to illuminate the road during rainy or foggy weather. In foggy conditions, visibility is low, and the driver's line of sight is limited. The yellow fog lights have strong light penetration, which can improve the visibility for both the driver and other traffic participants, ensuring driving safety. Below are some precautions regarding the use of fog lights: 1. Fog lights are suitable for severe rain, fog, snow, or dusty weather. The visible range of fog lights is about 100 meters. When visibility drops below 100 meters, it is necessary to turn on the fog lights and reduce speed. 2. When visibility is below 30 meters, the effect of front fog lights is minimal. It is advisable to pull over and turn on the hazard warning lights. 3. For rainy, foggy, snowy, or dusty weather, besides turning on the fog lights and reducing speed, some drivers may habitually turn on the hazard warning lights, which is actually unnecessary. First, the penetration of fog lights is far greater than that of hazard warning lights. Second, when hazard warning lights are turned on, the vehicle loses the ability to signal turns, making it difficult for drivers to indicate turns or lane changes, which can easily be overlooked by following vehicles and lead to traffic accidents.
I've been driving for decades and rely heavily on fog lights during foggy, rainy, or snowy weather. Their function is to cast a wide but low beam, helping you see the roadside and road surface without the glare and reflection of high beams. I remember one time in heavy fog on the highway—without fog lights, I couldn't see anything and nearly hit a stalled car. Once I turned them on, I could immediately distinguish road signs and lane markings, greatly improving safety. The key is to use them only in severe weather, as they can otherwise interfere with others' vision and even violate regulations. Fog lights also help reduce reflective accidents, making them an essential auxiliary tool for all-weather driving.
