What is the purpose of front fog lights on a car?
2 Answers
Front fog lights on a car serve to make the vehicle visible to others in conditions of reduced visibility such as foggy or rainy weather. Here are some key points about front fog lights: 1. Front fog lights are installed at the front of the vehicle, slightly lower than the headlights, to illuminate the road during rain or fog. 2. They typically emit yellow light because yellow is the purest color and has the strongest penetrating power. The yellow fog lights can penetrate thick fog and project over long distances, improving visibility for the driver and other road users.
Having driven trucks for over a decade, I know exactly how useful front fog lights are. Normally when encountering heavy rain or dense fog on highways, low beams simply can't penetrate the weather conditions—everything just looks like a white blur. That's when turning on the front fog lights makes all the difference. These lights are specially designed with low-positioned wide beams, and their yellow light has strong penetration power, illuminating the road surface and shoulders 10+ meters ahead. They're particularly helpful for seeing curb markings during turns. Moreover, the yellow light stands out distinctly in rainy/foggy conditions, making your vehicle visible to rear traffic from far away—it's actually safer than hazard lights. Just remember not to use them unnecessarily in clear weather, as their low beam angle can dazzle oncoming drivers.
