for the 3x xm-l i am planning on using this driver to ramp it up a bit, cooling is done by heatsinking led and driver to aluminium housing, when operated underwater it should be cool enough (maby) lck-led.com - Informationen zum Thema lck led.
This is pretty much the same i think, is this a good idea to drive three xm-l’s in series with, are there any experiences with it and how many amps it is over each led with three xm-l , i have already tried to search but could not find anything, i am sorry if i missed it
did i move this thread myself or did it get moderated? I am really sorry if i have done something wrong 
Maby something like this for the cob? or are they just crap? http://www.dx.com/p/dc11-35v-to-11-35v-10a-constant-current-constant-voltage-boost-converter-step-up-power-module-247963#.VANcRfl_sWQ
