Product applied on a 2003 Rav4. I carefully followed the instructions. This caused me some sweats when my lights were left virtually opaque (prayers in the program). It takes a good hour to treat optic 2 and we also need a good dose of elbow grease.
In the end the result is quite compelling and my regained their optical transparency, even if they were only slightly yellowed.
Note that the last resin applied took several days to dry, without this alters the result.