
This was commissioned by one of our members. The SST-50 is a 6500K driven by an 18650 through a three-level 7135 sandwich at about .6, 1.2 and 3.2 amps.
The emitter was reflowed onto a copper slug that is embedded about half an inch into the aluminum heat sink. No worries here about getting the heat away from the LED.



The heat sink is a very tight press fit into the body. Both surfaces are very smoothly machined to insure good contact.


A ring contacts the flat base of the reflector to position the emitter properly. This also has the advantage of getting some heat into the reflector, from which it conducts to the head.






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