Fenix P1D-CE and Cree P4 Projection Spectroradiometric Result

Hi, my friend just finished his test on these two flashlights, i hope i can supply other flashlights to him to test so stay tuned.
The test was done on huge 2 meter ball weighting about 500kg all its own, attached to a machine as large as a standing fridge with printer and a dedicated PC as a console. I know the machine can do much more than this but in the mean time this will do.


Parameters : Fenix P1D / DX Cree P4 Projection
-------------------------------------------------------------
Correlated Color Temp : 6416 K / 6530 K
Luminous Flux : 83,5 lm / 108,86 lm
Color Shift : -0.00532 duv / +0.00118 duv
Red Color Ratio : 15,1 % / 13,7 %
Rendering Index. Ra : 80,8 / 74,9
Peak Wavelength : 450 nm / 445 nm
Color Difference : 16,0 SDCM / 7,8 SDCM
Radiant Flux : 0,286 W / 0,346 W

I dont understand what all the numbers means so i'll let anyone to judge.
More to come probably P3D and DX WF-400.

Enjoy :wave:

Wow, that's very cool, thanks for the info! So I'm guessing that this is an integrating sphere? The only numbers that mean much to me are the color temp & luminous flux (I'm thinking luminous flux = total output, since it's in lumens, though 83 lumens sounds kinda low for a P1D-CE). Was this a P1D or a P1D-CE?

It'd be nice to know what all the other values mean. Looking forward to more results!

--kirk