Nice work!
That second prototype looks like a winner. I was thinking of doing something like this as well. Good to know that the smaller LED's work better. As far as the adhesive goes...I wonder if they make RTV or caulking that would be clear enough? Just a thought.
BTW, anyone that's looking for lamps should check with Steve (FORDSVTPARTS) at Tousley Ford. He's an associate sponsor of [FJ] and sells
OEM Ford parts at 10% over cost.