Ok in the case of corbin/mr board the mr board is for sound only and the corbin driver works the led.
Now the driver puts out 1a or 1000ma. Now that's enough to fully drive a lux III, overdrive a luxV and really overdrive a luxI, But for luxIII reds and ambers, k2s(high current models) you will be under driving them. as they need 1.5a or 1500 ma.
Now in order to use a luxV with the corbin mr setup you need a voltage regulator for the mr board cause (some mr boards)5 colts and up will fry the mr board. The corbin and mr board run off the same battery pack and anything less than 4.8V on the corbin board wont be enough from what I can remember.
If you want to use a luxV with mr sound you will need a 5volt regulator, the diagrams I posted on tcss will work the same just use the comparison images to see where the new contacts go and adjust accordingly to the old diagrams.