Cree XM-L is a year old now; what next?

[bose301s]

not at all, LED tech is still improving greatly, especially with Cree finally using thin film and remote phosphor.

Craig

You realize LEDs were thin film from day 1 right?

[RoGuE_StreaK]

Huh, just received an email from Cree saying that my XM-L sample has been posted... three months after the sample order was approved!! Had just given up and ordered some from LedRise only a few days ago!

[csshih]

You realize LEDs were thin film from day 1 right?

forgot the flip chip, duh!

Craig

[happyguy82]

Ahh! I didn't realise the XM-L was over a year old already. This means that when SureFire releases their upcoming 500lumens lights such as the DM2, it may not be using the best LED on the market.

[SemiMan]

Actually back thinned which is probably more accurate is new for power LEDs developed by Osram an licensed to Cree and Lumileds and others. New being years.

[RichLee]

New XLamp® XP-G2 LEDs Deliver 20 Percent Efficiency Increase in the XP Footprint


DURHAM, NC --Cree, Inc. (Nasdaq: CREE) introduces the XLamp^® XP-G2 LED to deliver luminaire manufacturers up to 20 percent more lumens per watt and 2.5 times the lumens-per-dollar over the original XP-G LED. The brighter, more efficient XP-G2 LED provides customers an immediate boost in performance and enables manufacturers to use fewer LEDs to get the same brightness at lower cost or increase brightness levels using the same LED count and power.
Characterized and binned at 85°C, the new XP-G2 LED leverages the same footprint (3.45mm x 3.45mm) and is compatible optically with the original XP-G LED – providing drop-in-ready performance enhancements to shorten the LED fixture design cycle and improve customer time to market. The XP-G2 LED can enable a broad range of high-lumen applications, from indoor and outdoor to portable and lamp retrofits.
“We have many designs using Cree’s XLamp XP-G LED,” said William Weiss, partner and director of technology, MSi Solid State Lighting. “The new XP-G2 allows us to take full advantage of the benefits of Cree’s latest technology without any significant design changes, improving time-to-market.”
Built on the revolutionary SC³ Technology Platform, the XP-G2 LEDs combine high light output, reliability and efficacy to deliver up to 151 lumens per watt at 350 mA, 85°C or 165 lumens per watt at 350mA, 25°C in cool white (both at 6000K). In warm white (3000K), the XP-G2 LED delivers up to 133 lumens per watt at 350 mA, 85°C or 145 lumens per watt at 350mA, 25°C. The SC³ Technology Platform leverages Cree’s advanced silicon carbide technology, features advancements in LED chip architecture and phosphor and showcases a new package design to deliver the most advanced lighting- class LED components in the industry.
Luminaire makers seeking ENERGY STAR^® qualification will have access to specification and performance data, including LM-80 reports, which can speed time to market. XP-G2 LEDs are a “successor” product to the original XP-G LED for LM-80 data – accelerating qualification of luminaires using just 3000 hours of LM-80 data, instead of the normal 6000 hours. The XP-G2 LED is also UL-recognized and features a level 4 rating.
Cree XLamp XP-G2 LED samples are available now and production quantities are available with standard lead times. To locate a distributor or to learn more, please visit www.cree.com/xpg2.

[flashflood]

And this thread is now a year old, which makes the XM-L over two years old!

The XP-G2 and MT-G2 are good, but there's still no hint of an XM-L successor. Cree has poured a ton of money into their new silicon carbide platform, but this doesn't appear to be delivering (significantly) more lumens or (at all) better color, just lower cost -- which is great for commercial lighting, but not as relevant for us. I know, I know, we don't matter -- but I really thought we'd be talking about the XJ-Q by now. And complaining that when Cree released the W2 flux bin, it looked a bit green compared to the trusty old V5 and V6.

[rambo180]

similar thread:

http://www.candlepowerforums.com/vb/...hip-technology!

[mds82]

I've heard there will be a XM-L2 coming out soon as well.

[bshanahan14rulz]

I'd rather see a smaller chip with the same output of the XM-L, even at the cost of a funky optical source like the DA series

[fyrstormer]

What's next? Hopefully something that's easier to focus. The XM-L requires an annoyingly large reflector to get a good beam. The XP-G was just about perfect for pocket-flashlight use.

[yliu]

What's next? Hopefully something that's easier to focus. The XM-L requires an annoyingly large reflector to get a good beam. The XP-G was just about perfect for pocket-flashlight use.

Hence the XPG2

[fyrstormer]

Hence the XPG2

Yes, though I've heard the non-flat die in the XPG2 is harder to focus than the XPG1.

[bshanahan14rulz]

As it turns out, the XP-G2 is a flip chip, much like rebels. So it will be just as easy to focus, with no bond wires or anode grid to get in the way.

[easilyled]

Yes, though I've heard the non-flat die in the XPG2 is harder to focus than the XPG1.

Who from and what were their justifications?

[bose301s]

Who from and what were their justifications?

I think he's getting XP-G2 and XT-E mixed up.