You can chose cree, citis, veros and eg. mean well as driver to mount a coolmac-system,
if you pay the difference.
The image of chinise or taiwan chips is very bad. But have another look to:
http://pct.cree.com/dt/index.html
So if you drive a middle class CBX3590(CB 11000) @ 51,9W / 1500mA /...