The headlights of cars illuminate the road we are traveling on. However, sometimes the headlights may not be tightly sealed or we may use them improperly, causing fog to form inside the lights, thus affecting the lighting environment and aesthetics. Under normal circumstances, whether it is an ordinary halogen headlight, a xenon headlight, or a headlight with an LED light set, there is a ventilation rubber tube on the back cover. A large amount of heat will be generated when the headlights are lit and even when the headlights are in use. The function of the breather pipe is to discharge this heat out of the headlights as much as possible to maintain the normal operating temperature of the headlights and ensure the use of the headlights. Stablize.
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You don’t have to worry too much if the car lights become foggy due to differences in ambient temperature. After the car lights are turned on for a period of time, the fog will be discharged out of the lights through the ventilator along with the hot air. This will basically not damage the headlights and electrical circuits. It should be noted that you must not bake the headlights. Doing so can easily damage the headlights. Because the exterior of the headlights are made of plastic, the extra heat can easily bake the lampshades, and most of this damage is irreparable. of.
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There is also a situation like the water mist generated after the vehicle is waded into water or the car is washed. Since the engine and exhaust system themselves are relatively large heat sources after the vehicle is waded into water, rainwater will form a large amount of water vapor, which will flow along the ventilation system. Air pipe, some water vapor will enter the headlight. Car washing is more straightforward. Some car owners like to use high-pressure water guns to flush the engine compartment. After flushing, the water in the engine compartment is not dealt with in time. After the engine compartment cover is closed, the water vapor cannot be quickly dispersed outside the car, which is stuffy. Moisture in the engine compartment may enter the headlight.
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The above mentioned are relatively minor cases of water entering the lamp. However, if the water inside the headlight of your car is enough to raise fish, then you need to disassemble it, open the lampshade, dry it, and check the surface of the headlight. If there is any damage or possible leakage, and if no abnormality is found, it is generally recommended to replace the headlight back cover sealing strip and vent pipe. If water still appears in the headlights after repairs, the only option is to replace the headlight assembly with a new one.
