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Thread: Cree does it again-160 lumens per watt @350 mA

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    Flashaholic* saabluster's Avatar
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    Default Cree does it again-160 lumens per watt @350 mA

    They just won't let up.

    "Cree... announces a breakthrough new lighting-class LED platform, the XLamp® XM LED. This new single chip LED delivers record-breaking efficacy of 160 lumens per watt at 350 mA. The LED also delivers 750 lumens at 2 A, which is equivalent to the light output of a 60 W incandescent light bulb at less than 7 watts."

    The important part for us is that this is a single chip device. I'm sure it will be larger still than the XP-G but that hasn't stopped the adoption of Luminus LEDs. Not available till Fall 2010 but at least we can trust Cree to actually do what they say. Nice to see something that will be purchasable instead of just lab results.

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    Default Re: Cree does it again-160 lumens per watt @350 mA

    Dang. This is very nice. And it will be available this fall!

    EDIT: Anyone wanna guess the die size? 4mm^2?
    Last edited by spencer; 04-12-2010 at 12:05 PM.

  3. #3

    Default Re: Cree does it again-160 lumens per watt @350 mA

    yes, I think it also ... 4mm2 die ...
    Endurer 4x18650 4xCree MCE M-bin WH 3000+ lumen, Police Maglite 2D SSR-90 with KD 52mm aspheric and 10A current with LDO10C driver and Red Maglite 5D@Luminus CBM-360 4500K neutral white 5000 lumen aspheric

  4. #4

    Default Re: Cree does it again-160 lumens per watt @350 mA

    I'm hoping the die size will be 2mm^2, like the XP-G. Given that the thermal resistance of the package is so low, such a small die may be reasonable. (Tell me if I'm dreaming.)

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    Flashaholic* JohnR66's Avatar
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    Default Re: Cree does it again-160 lumens per watt @350 mA

    Great! Perhaps now there can be department store bulbs with a lamp efficiency north of 100 lumens per what instead of those current LED ones that are 20-40 l/w.

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    Default Re: Cree does it again-160 lumens per watt @350 mA

    Great! Gotta buy me one!

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    Default Re: Cree does it again-160 lumens per watt @350 mA

    that sounds sweet!

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    *Flashaholic* Burgess's Avatar
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    Default Re: Cree does it again-160 lumens per watt @350 mA

    What ? ? ?


    Nobody has yet demanded


    A Neutral-White version ? ! ? ! ?



    PS: Thank you to Saabluster, for keeping us informed.
    _

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    Flashaholic* saabluster's Avatar
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    Default Re: Cree does it again-160 lumens per watt @350 mA

    I'm going to go out on a limb and say it will be 2.45x2.45mm. I hope it will be smaller than that but unless they do more on the thermal front than they have been doing with the recent LEDs it probably will be big to get numbers like that. I really wish they would come out with an LED that is mounted on a chuck of SiC like the XR-E. It would benefit the small pocket projector as well as flashlight markets. Sure the price would be higher but it sure would be nice to be able to overdrive these newer dice like we can the old XR-E. We need more development on the surface brightness front! That has been completely ignored. Oh well.

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    Default Re: Cree does it again-160 lumens per watt @350 mA

    Quote Originally Posted by Burgess View Post
    What ? ? ?


    Nobody has yet demanded


    A Neutral-White version ? ! ? ! ?



    PS: Thank you to Saabluster, for keeping us informed.
    _
    Me, me, me, me !!!

    I want a Neutral-White version, NOW!

  11. #11

    Default Re: Cree does it again-160 lumens per watt @350 mA

    Quote Originally Posted by saabluster View Post
    I'm going to go out on a limb and say it will be 2.45x2.45mm. I hope it will be smaller than that but unless they do more on the thermal front than they have been doing with the recent LEDs it probably will be big to get numbers like that. I really wish they would come out with an LED that is mounted on a chuck of SiC like the XR-E. It would benefit the small pocket projector as well as flashlight markets. Sure the price would be higher but it sure would be nice to be able to overdrive these newer dice like we can the old XR-E. We need more development on the surface brightness front! That has been completely ignored. Oh well.
    Sorry guys try 5mm square

  12. #12

    Default Re: Cree does it again-160 lumens per watt @350 mA

    That is a pretty large die...

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    Default Re: Cree does it again-160 lumens per watt @350 mA

    Is this fact? If it is then its slightly disappointing because it's pretty much the same package as the SST-50.

  14. #14

    Default Re: Cree does it again-160 lumens per watt @350 mA

    Are any LED flashlights run at 2 amps??

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    Default Re: Cree does it again-160 lumens per watt @350 mA

    Quote Originally Posted by spencer View Post
    Is this fact? If it is then its slightly disappointing because it's pretty much the same package as the SST-50.

    All of you are just guessing at this point. how about we wait for some real answers before we start making assumptions.

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    Flashaholic* Linger's Avatar
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    Default Re: Cree does it again-160 lumens per watt @350 mA

    Quote Originally Posted by eyeeatingfish View Post
    Are any LED flashlights run at 2 amps??
    Many. I have like 6 that are +2A. Lots of modders have +5A torches in hand.

    So Cree increased the die size to help increase lumen output.

    Question - Why is drive voltage not meantioned?
    Last edited by Linger; 04-12-2010 at 05:32 PM.
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    Administrator Kestrel's Avatar
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    Default Re: Cree does it again-160 lumens per watt @350 mA

    Quote Originally Posted by Linger View Post
    Question - Why is drive voltage not meantioned?
    I was initially curious about this as well.
    I know I'm only a part-timer / lightweight in this section, but running the numbers from the article:
    "At 2 A, an XM LED produces 750 lumens at 110 lumens per watt."
    750/110 = 6.8 watts
    6.8w / 2A = 3.41 volts
    ... which sounds about right.
    Last edited by Kestrel; 04-12-2010 at 05:44 PM.

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    Flashaholic brted's Avatar
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    Default Re: Cree does it again-160 lumens per watt @350 mA

    Quote Originally Posted by Linger View Post
    Many. I have like 6 that are +2A. Lots of modders have +5A torches in hand.

    So Cree increased the die size to help increase lumen output.

    Question - Why is drive voltage not meantioned?
    Aren't they implying 2.9V at 350mA and 3.4V at 2A?

    160 lumens output at 160 lumens per watt (1 watt) at 350mA

    750 lumens at 110 lumens per watt (6.8 watts) at 2 amps.

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    Flashaholic* saabluster's Avatar
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    Default Re: Cree does it again-160 lumens per watt @350 mA

    Quote Originally Posted by WeLight View Post
    Sorry guys try 5mm square
    So basically the same as the SST-50 then? 2.25 x 2.25?

  20. #20

    Default Re: Cree does it again-160 lumens per watt @350 mA

    Quote Originally Posted by saabluster View Post
    So basically the same as the SST-50 then? 2.25 x 2.25?
    Details are yet to be released, but its expected they will have a demo at Lightfair, it will be larger than XP platform

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    Flashaholic* znomit's Avatar
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    Default Re: Cree does it again-160 lumens per watt @350 mA

    Quote Originally Posted by WeLight View Post
    Sorry guys try 5mm square
    5mm x 5mm, or 5 square mm?

  22. #22
    Flashaholic* saabluster's Avatar
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    Default Re: Cree does it again-160 lumens per watt @350 mA

    Quote Originally Posted by znomit View Post
    5mm x 5mm, or 5 square mm?
    I was wondering what he meant as well but since 25 square mm would be insane I assumed he meant 5 square mm. If it is 25 square then I am extremely underwhelmed to say the least.

    They say it will be two months until samples are even ready. Although I'm sure Cree will get this to market within the year as they expect it seems a bit premature to put out this press release when you can't even get samples.

  23. #23

    Default Re: Cree does it again-160 lumens per watt @350 mA

    They say it is bigger than the XP-E... they don't mention the XP-G, which would make me think it is smaller than the XP-G. However, they also say the XP-E is CREE's flagship model, so maybe the references are just outdated.

    WeLight, I'm a little confused by your phrasing. Are you guessing or do you have more information?

    Quote Originally Posted by saabluster View Post
    I was wondering what he meant as well but since 25 square mm would be insane I assumed he meant 5 square mm. If it is 25 square then I am extremely underwhelmed to say the least.

    They say it will be two months until samples are even ready. Although I'm sure Cree will get this to market within the year as they expect it seems a bit premature to put out this press release when you can't even get samples.
    Quote Originally Posted by CREE
    Samples of the XLamp XM LEDs are available for order with standard lead times and commercial availability is targeted for Fall 2010.
    I don't know how to request a sample, so it is possible the article's just wrong, but it would seem they are available as samples.

  24. #24
    Flashaholic* saabluster's Avatar
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    Default Re: Cree does it again-160 lumens per watt @350 mA

    Quote Originally Posted by I came to the light... View Post
    They say it is bigger than the XP-E... they don't mention the XP-G, which would make me think it is smaller than the XP-G. However, they also say the XP-E is CREE's flagship model, so maybe the references are just outdated.

    WeLight, I'm a little confused by your phrasing. Are you guessing or do you have more information?





    I don't know how to request a sample, so it is possible the article's just wrong, but it would seem they are available as samples.
    My Cree Rep says it's a two month wait for the new LEDs minimum. That was not a guess. Samples are not for the general public.

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    Default Re: Cree does it again-160 lumens per watt @350 mA

    Quote Originally Posted by I came to the light... View Post
    They say it is bigger than the XP-E... they don't mention the XP-G, which would make me think it is smaller than the XP-G. However, they also say the XP-E is CREE's flagship model, so maybe the references are just outdated.
    Well to be strictly accurate they say it has a larger footprint than the XP series, which means package size rather than die size, so the die could be anything - though it seems unlikely the die wouldn't be bigger, otherwise why not keep the same package?

    Have to admit to being slightly disappointed too if the surface brightness is really less again than an XP-G (leaving the XP-E as the surface brightness champ). I've yet to go to feel the desire to build an XP-G lamp due to the difficulty of making something with decent throw compared to my old XR-E ones.

  26. #26

    Default Re: Cree does it again-160 lumens per watt @350 mA

    Quote Originally Posted by saabluster View Post
    My Cree Rep says it's a two month wait for the new LEDs minimum. That was not a guess. Samples are not for the general public.
    Thanks, I wasn't sure what exactly was meant by that part of the announcement. (My question about guessing was directed at WeLight)

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    Flashaholic Hugo2x's Avatar
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    Default Re: Cree does it again-160 lumens per watt @350 mA

    I am so excited, but what ever happened to XR-E R5's coming out?

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    Flashaholic* rizky_p's Avatar
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    Default Re: Cree does it again-160 lumens per watt @350 mA

    can wait to see what it look like......i haven't jump on SST family yet or maybe wont. hope this would satisfy my future need
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    Default Re: Cree does it again-160 lumens per watt @350 mA

    That's cool, I wonder if they will make a MC-XM

    I'm happy I have stock in Cree

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    Default Re: Cree does it again-160 lumens per watt @350 mA

    Quote Originally Posted by saabluster View Post
    ...We need more development on the surface brightness front! That has been completely ignored. Oh well.
    I agree with this completely. But thanks for posting this.
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