Hi,
I have 2 nitecores R2, one is the EZ AA R2 and the other is the D10 R2 but there are not the same tint : the D10 have a cool white tint and the EZ AA is much warmer.
What is the tint of your Nitecore D10 R2?
Likewise, my D10 R2 is noticeably warmer than my Fenix and Nitecore Q5s. Compared to my 5A and 5C lights, it has a hint of green. I'd still take it over ANY bit of blue in my beams.
My D10 R2 is obviously cooler than my warm tint (Jet-IIIM, Quark) lights, but less blue than my Q5 (Fenix L2D, Jet-I Pro V2) lights. It isn't much different to my other 2 R2 (Ti Infinitum, M20 Premium) lights though.