i am modding a 3c mag to triple Xm-l2 so i wanted to use a not cooler than 6100-6500K emitter as this XM-L2 U2 1C but it is out of stock at intl-outdoor and i have found this XM-L2 U2 1D available so what is the difference between The C & D as both of them are 6100-6500K and same lumens output
Here is the link for the full resolution ANSI White chart LSX mentions in his nicely answered post, there you can see the tint designations a little bit better.
I should have mentioned in my first post that they are not my own pictures. I just knew I had seen them around here a few times so went and found them again for you. The original thread is HERE