Moisture in headlights

Hey all, just bought my TRD offroad. So far tinted windows and blacked out the emblems. Next up is new headlights. I've read several posts where people are experiencing moisture in the lights after a HID install. The truck has less than 1000 miles on it so Im not looking to mess anything up. Is there anything to take into consideration before doing this mod to prevent moisture?

Im looking function first so hoping to go with a color as close to 4300 as possible. If not HID was looking at the phillips +100

 

i did mine a while ago and i haven't had any issues so far. I over drilled one of the dust caps but I just put some sealant around the grommit and so far so good. If i every get bothered by it a dust cap is something in the area of like $15.

 

I went with the Hella H9 2.0 low beams. Took about 5 minutes to mod the bulb. The light is much whiter on the garage wall. Havent driven at night yet for the true test.

 

When I ran HID I just used silicone on the gromet. Probably not needed but I never had moisture.