Meguiar's PlastX Clear Plastic Cleaner and Polish does the trick of cleaning off oxidized and cloudy light lens after six or seven uses of this cleaner, it provides a light coating of polymer to protect your light after it has been cleaned of oxidation and cloudy film, Meguiar's PlastX plastic cleaner works wonders on light to moderately cloudy lens, I applied this to both my car lights one was moderately cloudy and the other light just had a light spot in one area of the lens that it removed in one application, the other light had more cloudiness, what I did was apply one light coat and rubbed with a little firm pressure with a back and forth motion alternating with circular motion as I was cleaning rubbed until I did not hardly see any of the cleaner then allowed it dry to a haze, then I just buffed off with a microfiber cloth, this left the light much clearer and newer looking, I then left it about two days before I started the whole process over again to my amazement the light was looking far more cleaner and clearer than it did the first application, then I skipped a day again then started the whole process over again, did this until I reached six or seven coatings, now my car light looks brand new, Meguiar's is the best so far and does what it says as all Meguiar's products do, if Meguiar's does not help your problem then you either have the cloudiness inside the light which then you would have to change the light altogether or your lights are really yellowed and damaged alot by the sun and the elements then this product will not help you but for light to medium cloudiness then this stuff is awesome and would recommend this to all who have a little or some cloudiness.