Originally Posted by Accord1278
.....I would also recommend that when you have put the lights back together, get a tube of waterproof silicon (I believe 3M makes something like it) from Home Depot, Loews, etc. (found in the shower area where they have caulks, etc.) and place it all around the housing where it was opened from, just a little extra insurance to make sure you don't get any water or moisture in the lights.
I'd recommend just heating up the existing glue when you put them back together...use a heat gun or oven to warm and soften each peice, push them together and use pliers to make them tight like they used to be, it'll seal up just like before. Done three sets like this, never had a problem with condensation, no extra silicone needed.