Third brake led moisture

I have a led third brake installed on my truck, has been perfect until recently noticed it has some moisture inside the lens. Will this go away on its own? Have recently had some rain/cold weather. The seal seems tight around the light, or do I need to just buy a new light and return this one?

 

Id run a bead of GE silicone II on the mating surfaces.

aftermarket and cheap headlights, fogs, rebased bulbs, tails, etc are prone to poor sealing and fogging.

 

Ok, but what do I need to go about the moisture currently inside will it eventually evaporate or should I return this light and start with a new one.

 

Still have the stock one?

If so, run it for a couple days and let the other dry out.

If not, maybe the oven preheated and turned off is a good idea. Remember, place the piece on a bit of cardboard with the oven off so the steel rack doesnt melt the plastic

 

You should be able to loosen the screws and remove the lens. Reinstall the lens with a bead of silicone around the edges.