"TINT-SNOB LIGHTS": Convoy S21D & M21H w/ legendary Nichia 219b sw45k. Versus: Firefly Rosy FFL351A, Nichia 519a, B35AM, etc. (Summary p1) LATEST: DA1K w/ beautiful Rosy 👍 NTG50 4200k & Lume X1 (Test: Duv -0.0095, 2700 lm)

[cannga]

@clemence

Now we know we can mix high and low CCT to position the tint above/below BBL. Once Maukka’s test out, simple math like drafted by AEDe can give use relatively close approximation.

[Clemence]

Found above in this thread [Reference] Nichia E17A/E21A (2000K - 6500K, R9050/R9080, color) CCT and tint shots

I suspect it’s just an approximation and also depends on the outputs of the 2 LEDs being mixed, say at equal current.

Yes the Duv with optics I could test. In the middle of the beam where test is conducted, I could see how 10 degree TIR has more of the hotspot, whereas 60 has more corona mixed in?? Very interesting.