Why are there water droplets on the inner wall of car headlights? How?

Have you ever seen water droplets / mist visible to the naked eye on the inner wall of your lamp? Friends of Xiaobai car owners generally think that the headlights are "flooded" and want to drive to the 4S store for treatment, but the old drivers all know that this is a normal natural phenomenon. In order not to let Xiaobai continue Xiaobai, today Xiaobian will explain to you why there are water droplets / fog in the headlights.

LED automobile headlamp

1、 There are fog and water droplets in the headlamp, which are generally caused by the following conditions:

(1) Temperature difference change: turn off the lamp immediately after using the lamp for a long time, which is easy to cause fog in the lamp;

(2) Improper car washing: washing car lights with high-pressure water gun is easy to cause water droplets to flow into the vent hole and cause fog into the lights;

(3) Wading too deep: once the depth of water exceeds the wheel, it will enter the lamp through the vent hole;

(4) In rainy and snowy days, it is easy to cause water in the headlights, resulting in fog.

2、 Headlamp fogging treatment method:

In this case, you don't have to worry too much. After the lamp is turned on for a period of time, the fog will be discharged out of the lamp with the hot gas through the vent pipe, which basically won't hurt the headlamp and electrical circuit.

1.Park the car in the sun or in a dry place.

2. Start the car engine and turn on the headlamp to illuminate all functions.

3. When driving the car directly, the condensation in the lamp dissipates faster.

4. If water mist is found frequently in the lamp, it is mainly because the sealing ring of the headlamp is not well sealed. It is better to check the lamp body. The current lamps are generally integral. If the damage is obvious, it is better to replace them.