Sorry for not giving more infos,
Soldering to a heatpipe must be quite a challenge
I mean to solder the led along a square copper pipe in which fresh 60-70degree water will constantly circulate.
Indeed such a small optic for such a large die is probably beyound the laws of physic.
Using the ledil "lily" reflector should make the light 68mm by 91mm, bit large for my use, but possible.
it is not optics,
sst90 mags can't run full power for long, even massive heatsink for 1 led isn't enough, there was a thread here iirc someone turned halogen spotlight into sst 90 spotlight, heatsink was a lot bigger than for maglite, it also had a fan, yet still it was not capable of sustaining heatransfer at full power.
and you want to fit 12 sst90 (110amps at full power) into a base the size of even 68 by 91????? lol you'll melt your optics and leds along with it.
my advice search all sst90 mods on this forum, you will have lots of answers to questions you have not thought of yet.
heat pipes aren't cooling devices, they transfer heat, once i took apart a small comp that had a cpu on a aluminium base not bigger than cpu itself, 1 heatpipe about 3\16 and 6 in long was screwed into a heatsink 4 times the size, and with all fins pbly 100 surface area, that was for only 1 cpu. the reason for pipe was small size and arrangement, it is always better to have as short heat path as possible, heatpipes do exact opposite, they are necessary evil
also afaik spotlights are made for throw, i assume you want it as well , but tiny reflectors will not give you much throw, you'll have wall of light (before you melt everything) but not much throw, diametre and depth of reflector produce throw. that is why all spotlights have big reflector.
i have 3xp7 mag it is a wall of light, but xp-g with 2x as big reflector throws a lot farther.
if you want tiny size spotlight, get a white laser, and defuse the beam
