Teaser XML-3 Coming 5A rated

Sirstinky · 2020-06-15T23:04:12.000Z

djozz:

Cree has provided a design example (a torch ) for the XM-L3 that seems to show not too much tintshift over the beam, but a pic of a headlamp does not look good qua beam.
Document Library - Cree LED

A performance boost at 5A is nice. I’d like to see the voltage curves change over current input though. I wonder how they get 8300k though. The sample looks g0od, bit I’m wondering how they don’t have corona? This is definitely not a replacement for the xhp50.2 3 volt though, amd we’ll see how 9t compares to the sst40!

Th558 · 2020-06-16T00:59:57.000Z

I’m also wondering why at over 8000K the efficiency is almost the same. Maybe the production version will be better?

Sirstinky · 2020-06-16T01:48:32.000Z

No clue on bins either? How will it compare to the 7 year old XM-l2? I was thinking the xhp50.2 3v was going to replace the xm-l2, XM-l2, but obviously the cost difference is an issue for industrial applications. At $10 for a 50.2 vs $6 for a sst40 or $7 for an xp-l2 it makes sense for a new more efficient emitter.

Hikelite · 2020-06-16T06:24:17.000Z

djozz:

Cree has provided a design example (a torch ) for the XM-L3 that seems to show not too much tintshift over the beam, but a pic of a headlamp does not look good qua beam.
Document Library - Cree LED

It’s NiteCore TM06S which they make out to be way more nice than it really is with the XM-L2.

Actual beam of the flashlight with XM-L2.

What they show XM-L2 looks like in the TM06S, basically a crop of the hotspot only.

Considering that most of those type of reflectors always have all kind of bad artifacts, seems like a poor choice of testing their own LEDs on how they perfom, even if that was is not what they were trying to point out.

Agro · 2020-06-16T06:39:07.000Z

Marginally lower Vf than XM-L2.
At least now we know that it’s really not a flip chip.
Dome appears slightly smaller.
It’s slightly throwier, delivering 8.3 cd/lm rather than 8.0. The die might be smaller.
Huge CCT shift with current.

Agro · 2020-06-16T08:28:03.000Z

There’s a product page with a datasheet already:

Cree LED

XLamp® XM LEDs Archives - Cree LED

The first generation XLamp XM-L® LED was the industry’s first single-die LED to deliver over 1,000 lumens of light output. Newer generations of XM-L expand upon the performance advantages of the XM platform with more light output, better efficacy and...

Agro · 2020-06-16T09:58:55.000Z

Comparing datasheets:
table(table#posts).
|LED|Thermal resistance (K/W)|Max current (A)|Vf at 3A|CRI|CCT (K)|
|XM-L2|2.5|3|~3.17|unrated to 90|2600-8300|
|XM-L3|2.2|5|~3.14|unrated|5000-6500|
|SST-40|1.2|6 (8 pulse)|~3.01|70|4500-7500|

welight · 2020-06-18T22:39:21.000Z

chip looks good

its bright but no testing done yet, I got some U4 1A and 1B bins
Cheers

JaredM · 2020-06-18T22:41:50.000Z

interested in results!

ch1ir · 2020-06-18T22:50:38.000Z

Great news

Yokiamy · 2020-07-15T18:08:48.000Z

Kaidomain sells them as well

http://kaidomain.com/Cree-XM-L3-U4-1B-White-5000K-LED-Emitter

HONDARIDER · 2020-07-15T18:53:07.000Z

Looks like they only have the 6500K version at this time. I more fond of the 4000K tints personally.

BurningPlayd0h · 2020-07-16T01:27:11.000Z

Since there are both visible bond wires (so not flip-chip) and clearly phosphor over the entire pad, could this and the recent “XP-G2 HE” be using the same design and production process?

djozz · 2020-07-16T08:18:10.000Z

BurningPlayd0h:

Since there are both visible bond wires (so not flip-chip) and clearly phosphor over the entire pad, could this and the recent “XP-G2 HE” be using the same design and production process?

Could be, I do not have high expectations. But I will do a quick test when I get a couple in from KD.

Rolz · 2020-07-16T08:24:36.000Z

It will be really interesting to see how they perform. Great to see XM-L3 come out.

Rolz · 2020-07-16T08:43:42.000Z

Just saw a flashlight on KD which uses it,

http://kaidomain.com/KDLITKER-C21-Cree-XM-L3-1800-Lumens-5-Mode-LED-Flashlight?search=KDLITKER%20C21

The listing has errors but assuming it’s a L3 and the driver produces 5A, the 1800 Lumens is probably accurate

Yokiamy · 2020-07-16T18:37:25.000Z

djozz:

BurningPlayd0h:

Since there are both visible bond wires (so not flip-chip) and clearly phosphor over the entire pad, could this and the recent “XP-G2 HE” be using the same design and production process?

Could be, I do not have high expectations. But I will do a quick test when I get a couple in from KD.

Interested to see your results!

BurningPlayd0h · 2020-07-16T20:53:53.000Z

djozz:

BurningPlayd0h:

Since there are both visible bond wires (so not flip-chip) and clearly phosphor over the entire pad, could this and the recent “XP-G2 HE” be using the same design and production process?

Could be, I do not have high expectations. But I will do a quick test when I get a couple in from KD.

Excited to see your results, now that I think about it I don’t think I ever really saw any input on how the XP-G2 HE performed at all either, know of any tests/beamshots?

djozz · 2020-07-16T21:33:46.000Z

I have a XP-G2 HE but never tested it. I have become a bit test-tired over the last year.

Barkuti · 2020-07-16T23:45:00.000Z

welight:

chip looks good

…

Looks good? Not sure. I'd say looks yellow.

No further comments yet. O:)

djozz:

… I have become a bit test-tired over the last year.

Wellp, maybe you could renew interest by taking a different, casual and more relaxed testing approach? Testing a few emitters in a row can save effort, imho.