Followup on my post above about the Par 36 LED light housing.....I glued it to that piece of the tubing last night and when I came home today, it felt like it was very tightly fastened, so next step is to put her in the ground and see if the glue holds up.
I hooked it up to a test cable I have out back and it's working great!
I'm very impressed with this glue so far, BTW.
This is crazy cool stuff!!!