Where can I learn about color bins?

Anybody know where I can go to get a good education on Cree LED color bins? I really don't know the first thing about them, but would be interested in knowing what the best balance is between color and efficiency. Can you get both with a more expensive bin?

Here: http://candlepowerforums.com/vb/showthread.php?t=156772

The most efficient Q2 bin XR-E looks to only be available in WG and WH so far.

Good charts, but no real explanations of what it all means. I'm still "in the dark".

Could you describe what explanations your looking for? Color and efficiency aren't two terms I'm used to hearing together in terms of a single answer. Don't mean to be blunt, just looking for more detail to try and help.

-DF

The charts let you directly compare CREE tints against Luxeon tints, which you should already be familiar with. Otherwise you'd have to look at them in person since everyone sees them quite differently and an unacceptably yellow bin to one person may be perfect for another. For example the whitest Luxeon bin is WO and this is approximately equivalent to the CREE WD. Slightly more bluish is Luxeon XO/CREE WC or slightly more yellowish would be Luxeon VO/CREE WJ.

The flux bin tells you the efficiency (P3, P4, Q2, Q3). Since color is a lot more noticeable than efficiency, generally you'll pick the tint you like best then buy the most efficient flux bin it comes in.

I guess since I never learned Luxeon tints it pointless to try to learn cree, If I only have one Lux and one Cree light and have no idea what bin they are. I'll just take others advice as to what looks the best

Thank you bfg9000! That was the explanation I was looking for.