You're missing the "[/" after "too)" which is why you're quote isn't working.
Anyway, the best flux bin you can get is the "M" code flux bin. 430-490 Lumens powered at 700mA per die.
The Cree page for the MC-E is
here, and you want to have a look at the
binning and labeling sheet.
In my opinion, the two best Cree bins are WC and WD. They will be the purest white of all. Of course, that's my preference; some people like "warmer" or "cooler" colors. Have a look at the old Luxeon binning chart laid over the 1931 CIE chromacity diagram (I did some of the work on the chart)
HERE at Wayne Y's place. This chart is by FAR the easiest way to explain color binning to most people.
The Cree WC bin occupies the same color space as the old XO Luxeon bin, and the Cree WD bin is the same as the old WO Luxeon bin. From there you can see how the rest of the Cree bins will line up as far as colors go. Notice how the color changes as you move away from the Planckian (locus for black body radiation). Also note that the Cree "cool white" color bins WH and WJ overlap with the "neutral white" 3A and 3B. Sunlight is approximately 5,800 degrees Kelvin color temperature (4,800-6,500), FYI. :candle:
Anyway, the main reason the "cool white" WC-E's are brighter than the "neutral white" WC-E's is because there is a thicker phosphor layer applied over the neutral white LED dice. More phosphor absorbs more of the blue light, therefore making it dimmer.
Hope that helps you out.