How Long Can Headlight Restoration Last?

1 Answers
Millie
07/29/25 2:41pm
Headlight restoration can last two to three years. Headlight Composition: The headlight cover is injection-molded from polycarbonate or polymethyl methacrylate plastic. Whether it's halogen, xenon, or LED lights, they all generate significant heat when illuminated. This heat accelerates the aging of the plastic, causing the cover to lose clarity and transparency, even turning dim and yellow, which directly affects lighting performance. Causes of Headlight Wear: Car headlights are a crucial component. After prolonged use, you may notice that the light emitted becomes dim and yellowish, with reduced brightness, especially in halogen headlights. There are two main reasons for this decline in brightness: first, external factors like windblown sand, gravel, or other debris leaving scratches and dust on the cover; second, the heat generated by the bulb during illumination causes the plastic cover to age and yellow.
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