Not sure how this will turn out--going for mass lumens, with an attempt at handling the heat. I'm not concerned with practical use, size, or weight. I'm using 2" x 4" flat aluminum bar and turning it to build the head. The head alone will be almost 4" (diameter) x 6" (length) with imbedded copper cores under each LED. I will press in a 5/8" x 2 inch copper core into each hole in the head, then solder each LED directly to the copper heatsinks. I will cut fins in to create as much surface area as possible.
Any ideas on how long this will handle the heat of almost 100W?
Well, someday I'll get to post pics.