Well this is not a PM(private message). Everyone can see this. Just FYI. I recommend a max of only 1200mA for the XR-C. And this only if you have really really good heatsinking. I don't know if your driver will work or not as I don't know how many amps it puts out. But I have given you my recommended max. I just haven't found the XR-C to be able to handle quite as much as the top bin XP-C. You can go higher and ignore my suggestion without quickly destroying the LED(if awesome heatsinking) but the performance will go down not up so there just is no point.