So I recently bought an RGB Controller from here:
http://www.ebay.de/itm/371845983560?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
Basically everything works except the green light. It is way to dark and when i add 1/256 of blue it instantly becomes cyan. I tried to reset everything but it didnt work. When I controll the LED with an external Power supply, the green works perfectly fine.