I think the lenses should be glass. When I ordered mine they were glass, but I had to add the projectors later because I couldn't find an option for the w201 at the time that I liked. I have seen a w140 driving around here where I live and they have upgraded to the ebay aftermarkets, looks really good, but I have not seen it at night with the light output. My guess is that unless they have halogen bulbs, the output should be amazing.

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1990 190E 3.0L