How to Whiten Yellowed LED Light Covers Made of Plastic?
2 Answers
The methods to whiten yellowed LED light covers made of plastic are: brushing with a toothbrush dipped in a small amount of cleaner or sanding the cover followed by polishing. The functions of LED lights are: 1. Activating turn signals to alert following vehicles and reduce rear-end collisions; 2. Improving road visibility to enhance driving safety; 3. Informing trailing vehicles of braking to prompt speed reduction; 4. Using hazard lights during temporary stops, emergencies, or poor visibility conditions to notify passing vehicles. The maintenance methods for LED lights include: 1. Regularly inspecting light covers to prevent water droplets; 2. Periodically replacing lights; 3. Properly adjusting light height; 4. Using high-quality bulbs for replacements; 5. Preventing foreign objects from impacting the lights.
Yellowing of LED lamp covers made of plastic is a common issue. As a long-time car enthusiast, I've encountered this multiple times. It's usually caused by UV exposure or oxidation. To restore whiteness, toothpaste can serve as a simple solution with an easy method: apply regular toothpaste onto the lamp cover, gently scrub in circular motions for a few minutes using a soft cloth or sponge, then rinse with clean water. The results are quite good, and after several attempts, the brightness can be restored. If the effect isn't lasting, try professional automotive polishing compounds like Meguiar's—just follow the instructions. Don't forget regular cleaning of the lamp covers with mild detergent to prevent yellowing. I recommend treating them at least every six months to ensure safe nighttime driving with clear, unobstructed light. Remember to apply wax after cleaning for added protection and extended lifespan.
