What is the role of car fog lights

　　What is the role of car fog lights? In low-visibility weather such as rain, snow, and fog, car fog lights are like “safety eyes” that penetrate chaos. As a special lighting system, its design follows strict regulations and optical principles, and the installation location and opening method are scientifically considered.

　　Front fog lights: penetrating beams under the bumper

　　Front fog lights are usually embedded on both sides below the front bumper, about 30-50cm from the ground. This position can not only avoid being blocked by mud and water splashed by the front car, but also allow the light to penetrate the thick fog at a low angle. The new LED fog lights use special optical lenses to focus the light into a fan-shaped beam, forming a bright and uniform lighting area within 10 meters, which not only expands the visible range but also does not produce glare.

　　Rear fog lights: red warning to warn the rear vehicles

　　The rear fog lights are mostly integrated in the taillight combination or the middle of the rear bumper, using a striking red light source. Unlike the front fog lights, only one rear fog light is needed to meet regulatory requirements. Its function is to send a “keep distance” warning signal to the rear vehicle. Some models use pulse design to enhance recognition, forming regular red flashes in dense fog.

　　How to turn on: special mark on the knob

　　The fog light switch is usually located in the light control area on the left side of the steering wheel, marked with a special symbol of wavy lines and light. When operating, you need to turn on the width indicator light first, and then rotate it to the fog light position. It is worth noting that the rear fog light has an independent switch design, and some models need to be activated by pressing it twice to prevent accidental touch from affecting the rear traffic.

　　Usage guidelines: accurate judgment and regular maintenance

　　Fog lights should be enabled when visibility is less than 200 meters. Using them on sunny days will cause light reflection interference. It is recommended to check the cleanliness of the fog light surface every month, and spray a special anti-fog coating in winter. If the light is found to be yellow or delayed in starting, it may be due to aging of the bulb or poor contact of the line, and it should be repaired and replaced in time.

　　From the low-angle beam under the bumper to the red warning in the taillight, the fog light system protects driving safety in bad weather with precise optical design. Understanding its working principles and usage specifications is like mastering the “security code” that penetrates the fog, giving you more peace of mind and security on every trip.