My corals were used to LEDS already and I have been running my Vegas at a high %,, white in the 60-70 range and blues in the 80-90 range... I have been lowering them a bit every week and getting much better color from my corals.. I will probably settle in the high 50s for white and in the 70-80 range for blues.. greens and reds always stay about 10% below whites