LED test / review – Lumileds Luxeon MZ 5700 K min. 90 CRI (3V) – Finally! High CRI, High power, beautiful light

Does luxeon make a domeless emitter with a single one of these dies?

I considered upgrading my BLF Q8 with 4 of the HCRI MZ’s but realised something would probably melt if I tried!

Luxeon Z ES (German test here)

Thank you!

Looks like it wouldn’t work for a Q8, I misjudged the size and thought the dies were “XP-G” size.

Back to the drawing board. A 6V MZ in a convoy L6 looks like it might work!

They are basically dedomed XP-G size, very similar.

A 6V variant would definitely work in the L6. The only one that is not so great is the XHP-50 because of the rather high Vf.

I am wondering WHO will be the first lunatic to put 3 LMZ7-QW65/QW57s under 10507 with VTC5A and witness quickest step down/throw out of hand/deflow/melt optics in history :partying_face:

EDIT: I forgot about poor little omten 1288 :weary:

That would indeed be glorious! :smiling_imp:
I think a FETie switch would make sense :).

I wonder if there will be a donut hole when using clear optics and three LEDs.

Below ~8Amps per LED, there is no sense to use MZ instead of Luxeon V, and MZ is much less compatible with small optics.

Well about FETed switch I am not feeling a need for one. That would be making a whole built “sensible and safe” which by all means it is not. For the sake of care and longevity for sure but I would love to see omten in action :innocent: I am wondering the same about hole, especially with potential one inside of trousers pocket :smiley:

High-cri :wink:

I Agree with this one although I am highly concerned that if I decide to build one with S2+ in a month or so Lumileds will maybe release HiCRI Vs and then I will regret?

Carclo stated efficiency of 92% for 10507 with MZs.

Very interesting.

Yes, there would be a hole with clear optics. In fact according to carclo frosted gives more throw.
You can see beam shapes on the carclo site.

Yes, that’s actually just what I did after posting :wink: :person_facepalming:
They haven’t tested the Luxeon V yet, though. I know it wont be good but actual numbers and beamshots are still a nice thing.

LMZ9-QW57
Power at rated maximum: 14.40 W (peak: 16.72 W)
Efficiency at 4,800 mA: 93.4 lm/W (peak: 89.3 lm/W)

L1V1 led4power sample

Power at rated maximum: 16.42 W
Efficiency at 4,800 mA: 96.9 lm/W

If LMZ7-QW57 is about 30% more efficient than 90CRI verson it WOULD make sense to use it instead of V under 8A?

MZ would be brighter of course at any current, and Vf is crazy low,CC regulation would be maintained ~100% of time even at high mode, I'm just not sure how well it would work with small optics, total die size is bigger than tir entrance holes. Since I got 20mm mosDTP boards,I will build M1 with 5000K 80CRI MZ, just to see how they look in flashlight, XHP50.2 was total disappointment because of terrible tint/coronas.

I wonder what’s the relation between Luxeon MZ, Luxeon M and Luxeon MX…
Is M the same as MZ, but with a dome and larger package?
If yes, dedoming should bring the same performance at low currents and better at high - due to larger thermal pads.
MX is an upgraded variant of M. Eyeballing photos it seems to have about the same die sizes. And doesn’t look flip chip. And emission profile looks the same too. Is there a chance of it being better than MZ?

How did you get 30? T bin is 970-1040 lm. Here we have 867.8. So the difference should be ~16?

They all have same MZ core (4x4.2mm,4x Z ES chips), M and MX have full dome and white ceramic 7070 frame, footprint is the same for all leds, MX is basically updated flux bins Luxeon M, I don't see other differences.

Lower max soldering temperature, higher max current, higher Vf. Though slight differences may not actually mean a different product…
I had troubles reading the pad specs…thermal pad is the same. Good for compatibility, bad for performance. :wink:

Anyway, if that’s the case, dedomed MX should reach about XHP35 HI luminosity. Maybe even higher.

5700K 90CRI has 770lm typ. @85C, T bin has ~1005lm typ. @85C -> 1005lm/770lm=30% higher