Owner of a 4x4, the top of my spotlight was yellowed and opaque by sand and salt from the sea. After cleaning the optics (av or stop), is fixed on a disc drill 2000t / mn on which poses a moistened felt disc for use, applying the polish and the surface is polished until the desired effect
It is spectacular and stunning
Then we apply the product UV stabilizer with the cloth is impeccable
Furthermore the seller is effective, it lacked the leaflet, I got it in 1 / 2h top I recommend