A Lexus without condensation in the headlights is not a Lexus. IMO they have to come out with something more waterproof. I've seen condensation in so many Lexus's headlights just makes me think all our headlights are cheap!

 

its all good now...i taped the cover and the rubber gromats...and never again seen the condensation!

 

I think you did not caulk around the grommet on the HID bulb harness coming out of the ballest. Make sure to go to Home Depo, Menards, Lowes etc and obtain the clear silicone caulk for $5 and caulk the hell out of the back behind the cover to the low beam and make sure you caulk the harness twine as well. Moisture can get into the smallest of crevices. Also, you will have to let this all dry and still take time to get the current moisture out of the composite assembly.