Your in the UK so I can machine a Maglight host with a custom heat sink and focus adapter . Also can bore out the sink for a 25mm DTR copper module. The host is prewired were all you do is solder two wires and slide in the 25mm module. You would have to assemble the module and order from DTR.
Ah kewl man
what would be the price of that plus shipping ? Only problem is
DTR seems to have gone awol
I bought an excellent 2.4W off him
years back , still work great ...
but recently havent managed to make
any contact whatsoever ...