RB, Pau,
I think, everything depends on the rest of your stacking setup design. With my very simple "Home Depot electrical department" style DIY design I fitted to my stacking rig:
- it perfectly fits between microscope base and vertical column
- has very good heat dissipation - attached to the aluminum column and horizontal support
- no fan - no vibrations
- interchangeable - I can use no name FO ring light
- easily supports FO guide weight
- uses my existing 12v power supply and dimmers
Motorcycle headlight heat sink has + & -. Old FO connector can be be attached to the metal plate, which through the headlight fins with long screws tightened to the front of the headlight. Of course, glass should be removed.
Question is how all this thing will be attached ? Separate stand ? Stacking rig ? I suspect, if it will be not attached to the another metal construction - it will be warm (at 100%) ...
BTW, I'm using cheap ebay dimmers :
https://www.ebay.com/itm/12V-8A-LED-Lig ... SwMmBVzGeI