What to Do About Foggy Car Headlights?

[OEmersyn]

Solutions for foggy car headlights are as follows: 1. Turn on the headlight switch to use the heat generated by the headlights to evaporate the fog. 2. Park the car under direct sunlight for several hours to use the heat from the sun to evaporate the fog. 3. Open the dust cover at the back of the headlight and use a hairdryer to dry it. Extended Knowledge on Car Headlight Principles: 1. Whether it's a standard halogen headlight, xenon headlight, or LED headlight assembly, there is a vent rubber tube at the rear cover position. 2. When the headlight is turned on or during use, it generates a significant amount of heat. The vent tube's function is to expel this heat as much as possible to maintain the headlight's normal operating temperature and ensure stable performance. 3. Moisture in the air can enter the headlight through the vent tube and attach to the lens. As the moisture accumulates, droplets form and flow down the lens. 4. This phenomenon is mostly caused by significant temperature differences and is most common during winter and rainy seasons.