How does waterproof and breathable membrane protect car lights?

There are many kinds of lamps on cars. It includes headlights, fog lights, tail lights, signal lights, indicator lights, steering wheel lights, etc. For headlights, heavy fog often appears in rainy days or high-humidity environments, so the fog needs to be dispelled quickly. Some headlights are connected directly to the atmosphere. The negative pressure caused by the shutdown will cause water to flow outside, making the fog scene more severe and causing damage to the components in the lamp. In this case, EPTFE material membrane is used to solve the problem of light fog in cars. While the heavy fog dissipates quickly, it can provide good protection against the intrusion of external water and dust during the operation of the headlights.
Car headlights equipped with waterproof and breathable membranes have good luminous performance even under extremely harsh road conditions and operate smoothly for a long time. For lamps such as fog lights, tail lights, signal lights, indicator lights, turn signals, etc., although the power of the light-emitting components is not very high, the space is relatively small, so good breathability is also required, and the waterproof and breathable film of the car lights has high protective performance.
A suitable waterproof and breathable film is designed for various car lights, which solves the waterproof and breathable problems of various car lights, improves the reliability of the lights, extends the service life of the lights, and shortens the design and assembly time. SDA waterproof and permeable membrane can also help car lights block pollution from gasoline, diesel, hydraulic oil and lubricating oil.