Did this the other day. Wish I had of taken a before and after pic.
I have a protection film across the front of the headlights(Put on before I purchased) but the top of the lens and side where the amber marker are not covered.
It was yellow,hazy and white, and couldn’t see through it at all.
Used this:
And it worked amazing. Headlights look brand new.
Used the pad with the compound and did it by hand. Didn’t have to press hard and it only took about 2 minutes per side.
After you sand it and wipe the compound off, you spray it with the coating. Came out crystal clear. Not sure how long it will last, but 10 min of work every year or two doesn’t bother me.