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Thread: Which is brighter ?

  1. #1

    Default Which is brighter ?

    hi just a little question

    Which is the brightest LED I can get now in the shop ?

    Is it the Cree Tri-XP-E2 ? or Cree XP-E2 ?
    Or are The Rebels brighter ?

    And is the tri xp LED good for a stunt saber or is the single LED a better way to go ?

    Thanks for answering and MTFBWYA

  2. #2

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    It all depends on how you drive them. Tri-Crees would generally be the brightest, depending on your setup.
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    "Yeah, yeah, I've heard it all before... you want blindingly bright, super loud, running 1138 blinkies off of the cheapest sound card you can find AND you want all of it to run on a battery the size of a dime, and run for a very, VERY long time. That one cracks me up every time..."
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  3. #3

    Default

    Quote Originally Posted by Forgetful Jedi Knight View Post
    It all depends on how you drive them. Tri-Crees would generally be the brightest, depending on your setup.
    Uhmm .. I'd say that for the battery I use the 18650 battery or Li ion cells... so the stunt saber wouldn't have much more than the heat sink module ...
    But thanks for your answer !

  4. #4

    Default

    Quote Originally Posted by Forgetful Jedi Knight View Post
    It all depends on how you drive them. Tri-Crees would generally be the brightest, depending on your setup.
    I was about to ask a similar question in regards to the Tri Cree XPe2...what would you say would drive them at their maximum potential without burning them out? for instance, Im running the BBW set up with the 18650 battery with a a 1ohm 2w resistor on each...and they are wired in parallel with an NBv3.

    Sorry if I hijacked your thread, but I believe it may be relevant in the "what is brightest department".

  5. #5

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    Quote Originally Posted by erlomd View Post
    I was about to ask a similar question in regards to the Tri Cree XPe2...what would you say would drive them at their maximum potential without burning them out? for instance, Im running the BBW set up with the 18650 battery with a a 1ohm 2w resistor on each...and they are wired in parallel with an NBv3.

    Sorry if I hijacked your thread, but I believe it may be relevant in the "what is brightest department".
    1Ohm 2W resistors wouldn't be the "ideal" resistor, but they will work. Running them both at 1A would be fine.
    TCSS MODERATOR
    All n00bs READ these first (PLEASE)!!!:
    1. Forum Guidelines
    2. FJK’s “Down and Dirty” guide to Ohm’s Law

    "Yeah, yeah, I've heard it all before... you want blindingly bright, super loud, running 1138 blinkies off of the cheapest sound card you can find AND you want all of it to run on a battery the size of a dime, and run for a very, VERY long time. That one cracks me up every time..."
    My email: fjk_tcss@yahoo.com

  6. #6

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    Quote Originally Posted by Forgetful Jedi Knight View Post
    1Ohm 2W resistors wouldn't be the "ideal" resistor, but they will work. Running them both at 1A would be fine.
    damn...I thought I had this extremely confusing topic down packed
    so, what would be the "ideal" resistor?
    was thinking of running them at 1.5A
    with a forward voltage on the blue LED of 3.1
    and a source voltage of 3.7, Im looking at a 1ohm 2.3w resistor...the nearest one is 1ohm 2w and then I can adjust the mA setting on the NBv3 to 1.1A-1.2A or so (but there may not be a difference above 1A anyway)
    Last edited by erlomd; 03-28-2016 at 07:23 PM.

  7. #7

    Default

    Quote Originally Posted by erlomd View Post
    damn...I thought I had this extremely confusing topic down packed
    so, what would be the "ideal" resistor?
    was thinking of running them at 1.5A
    with a forward voltage on the blue LED of 3.1
    and a source voltage of 3.7, Im looking at a 1ohm 2.3w resistor...the nearest one is 1ohm 2w and then I can adjust the mA setting on the NBv3 to 1.1A-1.2A or so (but there may not be a difference above 1A anyway)
    Ah, so you want to live dangerously, huh? And no 2A is the max output of the NB, so two dice will get 1A each. I also have a tutorial floating around here somewhere that covers Ohm's Law. I also see you posting this on FX, too.
    TCSS MODERATOR
    All n00bs READ these first (PLEASE)!!!:
    1. Forum Guidelines
    2. FJK’s “Down and Dirty” guide to Ohm’s Law

    "Yeah, yeah, I've heard it all before... you want blindingly bright, super loud, running 1138 blinkies off of the cheapest sound card you can find AND you want all of it to run on a battery the size of a dime, and run for a very, VERY long time. That one cracks me up every time..."
    My email: fjk_tcss@yahoo.com

  8. #8

    Default

    Also the NB doesn't have an mA setting. The drive parameter is expressed as a fraction of the maximum drive (direct from the battery).

  9. #9

    Default

    Quote Originally Posted by NanoRex View Post
    Also the NB doesn't have an mA setting. The drive parameter is expressed as a fraction of the maximum drive (direct from the battery).
    Plus it's not a good idea to use it anyway. It's always better to use a resistor.
    TCSS MODERATOR
    All n00bs READ these first (PLEASE)!!!:
    1. Forum Guidelines
    2. FJK’s “Down and Dirty” guide to Ohm’s Law

    "Yeah, yeah, I've heard it all before... you want blindingly bright, super loud, running 1138 blinkies off of the cheapest sound card you can find AND you want all of it to run on a battery the size of a dime, and run for a very, VERY long time. That one cracks me up every time..."
    My email: fjk_tcss@yahoo.com

  10. #10

    Default

    got it! thanks guys...not so forgetful!

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