These headlights were pretty yellow. They have some haze from the inside, most likely they are not sealed properly. After sanding and polishing they came out nice. You can learn how I did them in the video.DIY car headlight restoration, Best car headlight cleaning methods, Headlight restoration tutorial, How to restore foggy car headlights, Car headlight restoration before and after, Headlight cleaning hacks, Car headlight polishing tips, Professional headlight restoration services, Headlight restoration product reviews, Headlight restoration cost breakdown