The argument being made here is that the CoralCare was designed for the European market first, which strongly prefers a "natural" 10,000-14,000K look. The full-on blue, no-white, actinics-only type reefs that are common in the US are not something that was designed for. BRS tested these lights with blues at 100% and whites at 30% to match the color temp they liked (very blue), so of course the output will be predictably diminished.