NOTE-EDIT: MORE VALUES will be added to this post as I continued measurements. I repeat measurements multiple times and make mistakes, so please don’t be surprised of changes.
Summary of tests so far. I repeat measurements several times and being (old) human, make mistake often enough. Please do not be surprised if you see changes. Anyway, output is the highest and Duv is the most negative that I’ve recorded so far for each step, during several 100% runs. Basically my numbers are when output AND heat are highest, meaning we are seeing the lowest possible Duv values of these LEDs.
CCT The 5700k LED measures 5000k. The 2700k LED measures 2575k.
Ra ~98 all CCT
Various CCT’s at Level 4
All tint-mixing CCT’s using 4 LEDs have PWM
2600k (2 LEDs): Output 1130 lm, Duv –0.0010, no PWM
3000k (4 LEDs): Output 1180 lm
3300k (4 LEDs): Output 980 lm
3700k (4 LEDs): Output 900 lm, Duv –0.0072
4500k (4 LEDs): Output 1350 lm, Duv –0.0055
5000k (2 LEDs): Output 1370 lm, Duv –0.0048, no PWM
Fixed 3600k CCT at Level 5 aka true Turbo, true 100%, etc.
4 LEDs, no PWM
Output 2000 lm, Duv –0.0071
Overall, Duv is excellent throughout, a result of two great bins of 2700k and 5700k 519a LED’s. The lowest Duv appears to be at the midpoint of 3700k, consistent with theory of CCT mixing. Output is average to below average when CCT mixing, and outstanding for “Turbo”/level 5, which is fixed at 3600k, and looks beautiful. The level 5 output of 2000 lm is highest of any quad Nichia D4V2’s and S21D’s I have (all 1700 lm or less). More beamshots to follow but so far IMHO this is a gem and a great first tint-shifting CCT ramping effort from Convoy.