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Thread: Green cree xpe-2 voltage confusion

  1. 03-06-2016, 08:03 PM #1
    Jonlo Garoc
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    Default Green cree xpe-2 voltage confusion

    I've recently constructed a pvc stunt saber with a green cree xpe-2. It's running on 3 aaa's at 4.5 volts without a resistor. It lights up fine, though it gets a little warm around where the led is sitting after a while. Does this setup have the potential to fry the led?
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  2. 03-06-2016, 08:15 PM #2
    Forgetful Jedi Knight
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    Probably not, because AAA's don't have a large (or long) current draw. With that said, I would strongly recommend you put some type of a resistor on there though. You're going to go through AAA's though, and the life of that LED might be shortened some.
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  3. 03-06-2016, 08:21 PM #3
    Jonlo Garoc
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    Alright, thanks for quelling my fears!
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