The new XP-G: another big announcement from CREE

[R33E8]

I'm pretty sure they use white and red LEDs in their downlamp fixture... They have the technology to makes higher lm/w high cri fixtures but I don't know why they make them.. If I remember correctly, it involved using a yellow LEDs with a blue phosphorconfused and red Osram Dragon LEDs..

 

[bshanahan14rulz]

Cree probably wouldn't use osram golden dragons, but thats just me speculating.

http://www.creeledlighting.com/lr6.htm

under the heading: World-Changing Technology, article states:

The core of the innovation is a new way to generate white light with LEDs.

under the next heading: A Better Way to Generate White Light

It delivers high efficacy light with beautiful, warm color characteristics by mixing the light from yellow and red LEDs. This approach enables active color management that maintains tight color consistency over the life of the product.

This leads me to believe that as the lamp ages (or perhaps there is a color sensor of some sort), circuitry adjusts the brightness of the yellow and red LEDs to keep the same color temp.

 

[saabluster]

Cree probably wouldn't use osram golden dragons, but thats just me speculating.

http://www.creeledlighting.com/lr6.htm

under the heading: World-Changing Technology, article states:


under the next heading: A Better Way to Generate White Light


This leads me to believe that as the lamp ages (or perhaps there is a color sensor of some sort), circuitry adjusts the brightness of the yellow and red LEDs to keep the same color temp.

I do not think the minimal tint shift over time is the big reason they have this setup. If you think about it it means they can put any tint white in there and the color LEDs can compensate for it. This allows more flexibility to use up some of the product that may be less desirable to their LED customers and therefore reduces unused stock on the shelves that they would otherwise have to sell at bargain-base prices to move. It really is genius.

 

[bshanahan14rulz]

Ah, yes. Same fixture, offer in cool, neutral, warm white, all they have to do is reprogram it! Who will be first to hack it? (hacking lightbulbs? what's the world coming to?!)

 

[Yoda4561]

Ah, yes. Same fixture, offer in cool, neutral, warm white, all they have to do is reprogram it! Who will be first to hack it? (hacking lightbulbs? what's the world coming to?!)

 

[LEDAdd1ct]

I do not mind floody lights so I hope Cree will come out with a MC-G soon.
1A @ 12V or 4A @ 3V to give 345*4=1380 LED lumens or 1104 torch lumens assuming 80% transmission.
If 4 -G dies won't fit into a MC-E case they should still fit into an SSC-P7 case.

So, will this be offered in a quad-die configuration like the MC-E?

 

[AardvarkSagus]

So, will this be offered in a quad-die configuration like the MC-E?

I don't believe anyone has any actual (non-speculative) information on this yet. I sure hope so though.

 

[Illum]

sometimes I wonder who really benefits from all this new research and development...

Unless the factory turnaround time can stop on a dime I don't think they can immediately utilize the new LEDs and adapt them into whatever fixture or portable electronics currently in production...

While it gives us a perspective for things to come I fail to see a significance in being in high hopes everytime something like this comes about. A shift in P4 to Q4 CREEs was a major change...but looking at it from a Q4 to Q5 didn't change much did it? I think it might be more beneficial if we start approaching this on a bigger scale rather on a consecutive, if not longitudional scale...

 

[qip]

anyone here get any xpg ...this guy has them apparently

 

[bshanahan14rulz]

Does he? I think that is a prototype bike light and is using xp-e right now, while he waits for xp-g (same solder pads) to come out.

https://www.candlepowerforums.com/posts/2973271

 

[saabluster]

Just thought I would update this thread with the further nugget of info that has now been made known. I have been contending throughout this thread that there had to be more than just the fact that the die was larger(more surface area for heat transfer) to account for the outstanding performance of the XP-G. We now know Cree has come out with Gen II dies that have some new technology in them that will allow the same output but with a smaller die in the XR-E. This presumably would also be applied to the new XP-G die and is the reason why it is as efficient as it is.:nana:

 

[AardvarkSagus]

SWEET! That's excellent news. Guess we have a new crop of lights headed our way specified as Gen II.

 

[Burgess]

Hopefully by Christmas. :thumbsup:








. . . . of this year ! ! !





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[baterija]

Saw the thread pop back up and looked...today is the start of the 3Q. I was hoping for news of the first samples getting out to some of those here that requested them.

I'll just go rock in the corner and mutter to myself while waiting "patiently."

 

[Burgess]

Here, have some Popcorn !





_

 

[jabe1]

 

[Marduke]

Saw the thread pop back up and looked...today is the start of the 3Q. I was hoping for news of the first samples getting out to some of those here that requested them.

I'll just go rock in the corner and mutter to myself while waiting "patiently."

I was fortunate enough to play with someone's sample of an XP-G R4 in action. It was quite something, almost like a half power MC-E sort of light.

 

[Burgess]

Thank you, Marduke !



:wow:

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[LEDAdd1ct]

Darn't, now I have to get a new bib...

 

[jashhash]

Anyone have some Idea what the pricing on these will be?