So this product has earned time a review! Bin due terribly dull headlights not come by TÜV. Took me from the primary application for about 50 minutes for both sides of my Opel Astra G. The result was super! However, since the content is sufficient for two applications, my ambition has packed and I the next day again invested about 45 minutes. Wonderful !! I am sure that the Lord by TÜV has nothing to complain about! Just buy it, not least because it has saved me at least 200!