~12v is interesting for both automotive and home appliances maybe.
Like I said, I know, that Cree isn’t focussed on flashlights, but it would be very neat if they could bring out lower Vf versions of those LEDs. Like the MT-G2.
For 3,xV, 6,xV and 11,xV.
Shouldn’t be a major problem for them…
And I’m still waiting for a 30-50W Vf 3,xV COB 
Low voltage and massive current is slightly nonsense, resistance is a too much of big deal and is the most real thing possible to not achieving good results, that is why everything powerful is high voltage, even the mains in the house.
Guys, we need boost drivers. Now.
XP-L HI still has the most average surface luminance per lumen out of all the LEDs shown in the image, so if you want throw that is the way to go, the simple route (no boosting).
I wonder about something as shown in the image: Does a domed XP-G2 has higher luminance (surface brightness) than a dedomed XP-L? Really?
I wonder about something as shown in the image: Does a domed XP-G2 has higher luminance (surface brightness) than a dedomed XP-L? Really?
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Not sure about the XP-L HI (so called domeless) so far only low bins have been out via Mouser. But at any rate just calculate to see the percentage increase from 7.8 to 8.2, it is 5.128%, not a monster difference which can easily go into manufacturing tolerances of LEDs.
Remember that number is in comparison to the lumens it gives. So, overall performance is not in that number, but in the wide view of all the numbers. The apparent die size of a XPL HI is about the same as the apparent die size of the domed XP-G2, but the luminous flux is just below double that of the XP-G2. The calculation they use is cd/cm2/lm but they don’t give us the number for cd. If we work the math backward, though, we find that the cd for the domed XP-G2 would be ~5027, while the cd for the XPL HI would be ~8541. So ,the XPL HI actually wins in overall performance. That 7.8 vs 8.2 is almost meaningless in itself. It has to be taken in context.
Also consider that XPL HI has much better tint than a dedomed XPG2. Even if they have comparable throw I’d go with the XPL HI just for the tint.
Yeah, maybe the unit cd/cm2/lm does not refers to the luminance, which I am unsure of.
AFAIK a domed LED can never achieve the same luminance as a domeless one, at least until today.
+1
I don't have high hopes for this in a flashlight. 12ish V emitters in general are not that useful in a flashlight.
Cree knocked it out of the park with XHP-70 6V though so I still have nothin' but love for em.
Part is 4 die led, like existing XHP, good news is XHP35 will come in domeless as well
Alright. That's it. I'm not buying anything else until these newer XHPs end up in the flashlights we love!
ordered a xhp35 HI and a ledil seanna to play with…
don’t tell my wife!
If you post her e-mail address and phone number we will be sure not to say anything. :bigsmile:
Based on pictures and some other data,this LED uses weird 4x 1.4mm2 dies,so they are not xp-e (1mm) dies.That means this led has 5.6mm2 of total die area,which is 40% more than XP-L / XM-L2. So it wont throw better than those two.Overdriving would be also less effective because thermal pad is only 1.3mm wide, and effective die length/width is 2.36mm.
Yes. Of course. I guarantee it. Honest. Scout's Honor. Promise.
I was thinking this emitter might over drive better than XML2 because its on the SC5 platform like XHP-70.
OMG!!! WHAT!!!
Are you guys even reading what Cree writes, or making stuff up?
Let me help ya’s:
“Leveraging the industry’s breakthrough 12-V monolithic power die”
“Delivering 50% higher performance than Cree’s previous highest-performing single-die LED”
It’s NOT 4-dies. It’s 1! This is the LED I’ve waited for, for ages. It’s like the SST-90, but made by CREE on SC5.
Where are people getting 4x 1.4mm dies from??? Maybe 4 semi-conductor chips underneath, but monolithic is one single phosphor layer that lights up white. Look at the main Cree site photos, it’s clearly the correct image. The static-diode is on the cathode side, it’s not in the middle of the package like an XPL Hi or other E2/G2/L2. The picture is right. Look at the data sheet, too. One die. Sorry, but I am jumping for joy right now. The J20-aspheric build found its ultimate partner.
I agree. The single die factor is what peeked my interest.
Has anyone seen the high intensitys for sale in the US yet? All I have found in stock are the high density. I guess I could cut the dome off myself, but I'd sure rather have one that cree did for me