Cree XM-L's available soon

It would be great to put 3 XM-L in a module like this one, and drive them at 3A each.. I thought about the one with 5 leds but the reflectors are smaller, and it wont have any throw or runtime..

http://www.dealextreme.com/details.dx/sku.9358

Some pictures of Cree XM-L , please go this page for detail : http://forum.lightake.com/Topic.aspx?BoardID=13&TopicID=167

You should host those images on a free image service as the direct links to shoudian don't work

http://www.shoudian.com/attachment.php?aid=409462&k=4dc513389d139f12d6c19f3cafc4142f&t=1290763033&noupdate=yes&sid=af6bLEFJaJOrARC%2BMrElZJmB0mfrwAanAFPuYXGMFLEpSOs 

Is this is useful?

http://www.candlepowerforums.com/vb/showthread.php?t=270517&page=8

Nice pictures in that thread over at Shoudian. The XML apparently has three bond wires and looks just like a supersized XPG (not surprising).

The XML seems to hold its own against the SST-50. It is a bit less bright at half the drive current, but that is to be expected. Can't read chinese so I don't know if the same optics were used in the comparison. Also, a comparison using the same drive current would be better.

To view the images: go to top left and click "登录", log in using the firefox plugin Bugmenot (or create an account).

Can someone put it simple terms the output in lumens and heat issues Compared to other leds like P7 MC-e SSt 50 and 90.

Cree XM-L compared to:

SSC P7: XML has more output, a tad less heat, cheaper, no cloverleaf and more intense hotspot

Cree MC-E: XML has more output, produces a tad less heat, cheaper, no cloverleaf and more intense hotspot

SST-50: XML puts out more light at same current, lower maximum current, less heat, much cheaper, more intense hotspot

SST-90: XML puts out same amount of light at 3A but more at lower current, has lower maximum current, less heat, much much cheaper, much more intense hotspot

Heat issues is very similar to MCE/P7, though it should be a bit more tolerant of high currents (due to lower thermal resistance).

The XM-L is basically two XP-G's melded into one big LED and its cost is about 1/3 that of a SST-50.

Luminus offerings can take more power so at maximum current they put out more light, that isn't a good comparison though.

SST-90: XML puts out same amount of light at 3A but more at lower current,

I don't think that's true.

In any case, the way to compare is just look at the current (which is essentially power in this case given the very simlar Vf's) to flux graphs for the emitters. The general slope of the graph is the bin number, eg Q3, R5. The way to think about comparing these emitters is to normalize them to an approximate bin standard (let's say cree xp-g's), with a max current/power rating.

For example, a R2 xp-g is about a R4 xr-e at 1A (~300lumens), but goes up to 1.5A instead instead of 1A max. A sst-90 medium bin (WM) is in this range but goes all the way up to 9A. Similar for K bin MC-E. The xm-l has better efficacy at this lower power, like S5 on the xp-g scale (about 50% better than bins discussed, about double of a q3 xr-e, and goes up to 3A).

If you want to consider power instead (I used current to normalize since most good drivers regulate on current), a xp-g/xp-e/xml is going to be slightly cooler due to lower Vf.

--

To summarize, the xm-l's are somewhat better than even top bins of quad die emitter without the gap. It's basically a significantly more efficient SST-50 that costs less.

pictures have fixed ,please visit it again : http://forum.lightake.com/Topic.aspx?BoardID=13&TopicID=167

You are right. I was a bit too optimistic.

I'll just post my calculations, it's a waste not to.

For Luminus SST-90:

WN-bin 850 - 1000
WM-bin 1000 - 1200 @ 3.15A


95% flux @ 3.0A gives:
WN-bin 808 - 950
WM-bin 950 - 1140 @ 3.0A 3.25Vf 9.75W


For Cree XM-L:
T5-bin 260 - 280
T6-bin 280 - 300
U2-bin 300 - 320 @ 700mA


325% flux @ 3.0A gives:
T5-bin 845 - 910
T6-bin 910 - 975
U2-bin 975 - 1040 @ 3.0A 3.30Vf 9.9W

Now we just need Cree to release the U2 bin.

Info obtained from SST-90 and XM-L datasheets.

Anyway, who would buy a SST-90 and drive it at a measly 3A?

KaiDomain comes through again with a XM-L for $12.32. Sadly, it's on a 20mm star.

http://www.kaidomain.com/ProductDetails.aspx?ProductID=11102

They now have it in a Skyray body!

http://www.kaidomain.com/ProductDetails.aspx?ProductId=11104

Also in a body that takes 2x18650

http://www.kaidomain.com/ProductDetails.aspx?ProductId=11103

I just ordered one XML in 20mm star for my trustfire f15 (and replace the P7) :)

That should work well - and give quite a lot more light.

I'd not noticed that MRV clone before.

" I'd not noticed that MRV clone before."

This is a great light, great heatsink, OP reflector and 3 modes ( 3A - 0.15A - strobe ). Some pics and video-beamshots here http://forolinternas.com/viewtopic.php?f=5&t=569&p=4926

I ordered 2 emitters on 16mm Basses of Ebay ...

I need another P60 host , well , I dont really ...

KD Have XML led 5T($7.70) and 6T($9.04)

http://www.kaidomain.com/ProductDetails.aspx?ProductId=11110

http://www.kaidomain.com/ProductDetails.aspx?ProductId=11108

ALso 5T($8.08) and 6T($9.14) on a 21mm star.

http://www.kaidomain.com/ProductDetails.aspx?ProductId=11109

http://www.kaidomain.com/ProductDetails.aspx?ProductId=11109

Oh no, now I just have to order it at this prices :( I

what price did you pay?