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Thread: Finished first Saber, everything was great until..

  1. #11

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    The good news is that your resistor's sacrifice likely saved the life of your LED. Bump up the wattage on your resistor. And maybe don't shrink wrap the resistor itself, just the connections to it. It needs to dissipate some of the heat that builds up.
    We all have to start somewhere. The journey is all the more impressive by our humble beginnings.

    http://led.linear1.org/1led.wiz for the lazy man's resistor calculator!
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  2. #12

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    What color LED? Red would destroy that resistor.. but blue or green should have been okay.

  3. #13

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    I wouldn't use anything lower than a 2w.

  4. #14

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    Quote Originally Posted by SFXER001 View Post
    What color LED? Red would destroy that resistor.. but blue or green should have been okay.
    Green.

  5. #15

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    That would normally be fine for a single Green Cree. Sounds like you had a bad resistor. The resistor wasn’t heat shrunk, was it?
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  6. #16

  7. #17

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    Ok, that is a huge problem. Resistors work by converting energy into heat and the. dissipating it. If it can’t dissipate heat, it WILL FAIL.
    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

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