How to Improve Brightness and Clarity
There are three ways you can improve the brightness and clarity of your headlights.
DIY Headlight Restoration Kit
The least expensive option is a DIY headlight restoration kit. While relatively easy to do, this method will last the shortest time before needing to be redone. “Typically, this involves using progressively finer grits of sandpaper to remove the damaged part of the lens materials, then buffing to create a clear surface free of the scratches from sanding,” says Brannon. “The better kits will finish with a UV coating to maximize the time that the restoration will last.”
Professional Headlight Restoration
Alternatively, you can get a professional headlight restoration, which tends to have better results and last longer because a UV protectant is applied and cured during the process. Professional headlight restorations cost more, but you might be able to add it to a detail you’re already doing for less than a stand-alone service.
While headlight restoration is ultimately better than leaving your headlights cloudy or yellow, both professional and DIY restorations only get the headlight output to approximately 70 percent of the light generated by a brand new lens. Additionally, AAA research found that after headlight restoration, the glare exceeds what is acceptable according to Department of Transportation criteria.