Condensation in fixture

Jon Faulkner · January 22, 2016

Hey fellas

This is my first post on here so hopefully I came to the right place. I just bought the anzo "U" shaped headlights. They look awesome. When I put in my HID kit I obviously had to take the cover off...now I am getting a ton of condensation.

I took the whole fixture out and put both up to a hear gun for hours to dry them out. After that I re-sealed everything possible! Parts I didn't even touch including the vents. I mean I sealed EVERYTHING... it rained today and I'm STILL getting condensation. Not really sure what else I can do. I used a clear silicon but no luck...can anyone point me in the right direction please?

Doug_Scott · January 22, 2016

Condensation inside light assemblies is often misunderstood. If you think about it logically sealing the assembly completely will actually give you more condensation, unless you can control the humidity of the room that you sealed the assembly in. Once sealed, the air inside the housing remains static. If it went in at 30% humidity, it will remain there. The moisture will condense on the lens, and if it gets hot enough inside, it will evaporate back into the air inside the housing. It cannot get out due to being sealed in.

Don't know why the housings don't come with some form of shielded vent on the top of the housing to allow airflow. My stock headlight on the left side has condensation inside that appeared about 3 months ago. Not sure what I am going to do about it.

If you have sealed the housings completely, try putting both of them into the freezer overnight(after removing the existing condensation), and then install the bulbs as quick as you can before removing them from the freezer. The freezer has about the driest air you will find. Gas line anti-freeze will absorb condensation to make it easier to get it out of the housings.

wade_660 · January 22, 2016

I've always totally sealed my housings when clearing them (probably 40+ sets). I usually let them sit inside overnight before sealing them up. Occasionally I'll get condensation the first time the headlights get hot, but it usually goes away shortly after and never returns. I'd put some silica packs in them and let them dry out. Once the air inside is dry, they should only leak if they aren't sealed well

Sent from my iPhone using Tapatalk