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Thread: Commonly Used LED Emitter Index

  1. #61
    Flashaholic* csshih's Avatar
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    Default Re: Commonly Used LED Emitter Index

    Quote Originally Posted by raven2751 View Post
    if anyone could help me identify this led, as i have not had much luck



    i kind of looks like a blob of clear glue has been badly dropped over the emitter.

    reason i ask is i'm intending to replace it with a better led. (it is a very cheap MTB light)

    thanks in advance
    dang... that LED is very very familiar.. the name escapes me at the moment... time to search up some of my old posts...
    I can't find which exact LED it is but it's a multidie one.. a very low end one that does not come close to any cree power LED.
    I got one couple years again in DX SKU 2124... not a good light at all.

    Craig

  2. #62

    Default Re: Commonly Used LED Emitter Index

    thanks csshih i am kind of wondering if i could put this led http://www.dotlight.de/products/en/L...-Star-PCB.html into the torch without making any other changes

  3. #63
    Flashaholic* csshih's Avatar
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    Default Re: Commonly Used LED Emitter Index

    Quote Originally Posted by raven2751 View Post
    thanks csshih i am kind of wondering if i could put this led http://www.dotlight.de/products/en/L...-Star-PCB.html into the torch without making any other changes
    driver wise, it should work. I'm not too sure about the forward voltage of the old LED, but they should be similar.

    But you're going to have trouble with fitment - the XR-E is rather large compared to the old emitter.

    -Craig

  4. #64
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    Default Re: Commonly Used LED Emitter Index

    Nice update csshih, I was wondering when the XM-L would be added to the database.

  5. #65
    Flashaholic* csshih's Avatar
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    Default Re: Commonly Used LED Emitter Index

    Quote Originally Posted by Imon View Post
    Nice update csshih, I was wondering when the XM-L would be added to the database.
    thanks, that was actually a re-update, as all updates since november were lost.

    -Craig

  6. #66

    Default Re: Commonly Used LED Emitter Index

    thanks for the advise, decided to go for the XP-G, as when comparing them the XP-G looks to be a better fit.

  7. #67

    Default Re: Commonly Used LED Emitter Index

    Great work indeed. Very, very helpful. I have absolutely no idea there were so many different types of LEDs for flashlights.

  8. #68
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    Default Re: Commonly Used LED Emitter Index

    Thanks! great work

  9. #69

    Default Re: Commonly Used LED Emitter Index

    Can any of you guys please tell me what L.E.D does my SureFire LX2 Lumamax !
    Thank you very much !
    I really wish I have the fund and time just like you guys !

  10. #70

    Default Re: Commonly Used LED Emitter Index

    The upcoming SureFire UDR Dominator has the most powerful L.E.D. ever !
    A single-die 2000 lumens L.E.D. !

    I wonder what L.E.D.is that ?

  11. #71
    Flashaholic* csshih's Avatar
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    Default Re: Commonly Used LED Emitter Index

    Quote Originally Posted by lyklyk616 View Post
    Can any of you guys please tell me what L.E.D does my SureFire LX2 Lumamax !
    Thank you very much !
    I really wish I have the fund and time just like you guys !
    Cree XR-E, If I recall correctly.

    I am pretty sure the UDR uses a sst90 due second hand descriptions
    If I were at SHOT show I would have been able to tell you immediately.

    Craig

  12. #72

    Default Re: Commonly Used LED Emitter Index

    wow~~it is great,i know some,but.....
    learn a lot

  13. #73

    Default Re: Commonly Used LED Emitter Index

    Quote Originally Posted by csshih View Post
    yup! I hope this helps people.
    PHENOMENAL JOB, csshih,

    Noob, trying to understand the working side of these incredible lights.

    In researching various lights on this forum, a knowledgeable Member, (who is trying to help) often offers " thats a XR-E or XP-E or another emitter type" that is OLDER technology and the later model is a XP-G (or xxx), try an obtain that Model for your application.

    In searching for the evolution and manufacturers date of these emitters, this leads me to several pages of good information, but I cannot find the exact date/year these were introduced. I realize I'm trying to simplify and there are other factors.
    Did I miss something? Do you look for characteristics of the emitter rather than the Model year of manufacturer?

    When were these made or replaced by the "Latest Technology"

    Cree:

    XR-E (R2)
    XR-C (P4)
    MC-E (M)
    XP-E (R2)
    XP-C (Q4)
    XP-G (R5)
    XM-L (T6)

    Phillips
    Luxeon l
    Luxeon lll
    Luxeon V
    Luxeon K2 (V)
    Luxeon Rebel

    Seoul Semiconductor
    P4
    P7
    Luminus
    SST-50
    SST-90
    Ostram Opto
    Ostar 96 Die)


    Thank You

  14. #74
    Flashaholic* csshih's Avatar
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    Default Re: Commonly Used LED Emitter Index

    Before I go and research dates - this is the order I believe they are in.

    Luxeon I
    Luxeon III
    Luxeon V
    P4
    Luxeon K2 (or was it after the XR-E?)
    XR-E
    P7
    MC-E
    XR-C
    MC-E
    Luxeon Rebel
    XP-E
    XP-C
    XP-G
    SST-50
    SST-90
    XM-L

    time to research.
    Craig

  15. #75

    Default Re: Commonly Used LED Emitter Index

    thx 4 sharing

  16. #76
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    Buttrock Re: Commonly Used LED Emitter Index

    useful thread, i love it ...

    bookmarked for future needs

  17. #77

    Default Re: Commonly Used LED Emitter Index

    XM-L or SST which is the better LED?
    Thanks,
    Steve

  18. #78
    Flashaholic* csshih's Avatar
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    Default Re: Commonly Used LED Emitter Index

    sorry, haven't had to do the research. too many essays lately!

    it's usually hard to say which LED is better, but I can say, the XM-L is more efficient, but the SST50 is more robust.

    Craig

  19. #79
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    Default

    Quote Originally Posted by Hwy115 View Post
    XM-L or SST which is the better LED?
    Thanks,
    Steve
    From what I know, the XM L is better if you are gonna drive it below 3 Amps. Both SST 50 and 90 can be driven harder than the XML.

  20. #80

    Party Re: Commonly Used LED Emitter Index

    amazing, soooo many i wanted, vote for a sticky.

  21. #81
    Flashaholic* bshanahan14rulz's Avatar
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    Default Re: Commonly Used LED Emitter Index

    beautiful shots, great compilation. Thanks to all contributors!

  22. #82
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    Default Re: Commonly Used LED Emitter Index

    Great job!
    This is very useful, Thanks!

  23. #83
    Flashaholic Epsilon's Avatar
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    Default Re: Commonly Used LED Emitter Index

    I made a picture some time ago, to compare ledsizes. Maybe a useful addition to the OP?


  24. #84
    Flashaholic* AFAustin's Avatar
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    Default Re: Commonly Used LED Emitter Index

    Great thread! Thanks so much, csshih.

    I am trying to determine if the emitter in a Peak Eiger is a Rebel (older Eigers) or an XP-G (newer ones). If there is a bit of green visible on the board, does that mean it has to be an XP-G?

    Thanks for any help,

    Andrew
    You can say any foolish thing to a dog, and the dog will give you this look that says, "My God, you're right! I never would've thought of that!" (Dave Barry)

  25. #85
    Flashaholic* csshih's Avatar
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    Default Re: Commonly Used LED Emitter Index

    Hi Andrew,

    In your case, I think so - though, the rebels have distinctive indentations on the dies (assuming they're the newer TFFC chips) which should help distinguish the emitters from the XP-Gs.

    Craig

  26. #86
    Flashaholic* AFAustin's Avatar
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    Default Re: Commonly Used LED Emitter Index

    Craig, thanks for your reply and info. The Peak Eiger in question has an optic that makes viewing the details of the emitter itself difficult. But, I can make out a bit of green on the periphery, so I guess it's more likely XP-G than Rebel.

    Thanks again and regards,

    Andrew
    You can say any foolish thing to a dog, and the dog will give you this look that says, "My God, you're right! I never would've thought of that!" (Dave Barry)

  27. #87
    Flashaholic* csshih's Avatar
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    Default Re: Commonly Used LED Emitter Index

    Hi Andrew,

    I find if I look at optics straight on I can usually see the current spreaders of Cree LEDs. I then count them to find out which LED!

    Craig

  28. #88
    Flashaholic* AFAustin's Avatar
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    Default Re: Commonly Used LED Emitter Index

    Craig,

    Thanks. Forgive my ignorance (non-technical guy here), but the "current spreaders" are the parallel wires across the face of the emitter?

    But, sadly, with the Eiger, no can do. It also has a lens that is, well, very stippled, so the emitter just appears as a round yellow golf ball! The wires are not visible, even with my 15x lighted loupe.

    Andrew
    You can say any foolish thing to a dog, and the dog will give you this look that says, "My God, you're right! I never would've thought of that!" (Dave Barry)

  29. #89
    Flashaholic* csshih's Avatar
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    Default Re: Commonly Used LED Emitter Index

    Hey Andrew,

    yep, those are the current spreaders. I guess that`s all we can get without taking it apart.

    Craig

  30. #90

    Red face Re: Commonly Used LED Emitter Index

    Thanks a lot for sharing. Hope it will work.

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