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Thread: Help on LED Resistors

  1. #21

  2. #22

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    Just trying to figure this out myself, I am converting a 2007 Hasbro A-RotS measureing 4.5v-2.65v (Red Cree XP-E2 CopperNova) =1.85 ohms so I should use a 2ohm resistor?
    I have ordered a Ceramic Cement Resistor 2 Ohm 10W hoping that I was doing this right, but figured I should play it safe and ask, please let me know if i'm doing this wright and set me in the correct direction if I'm not.
    Thanks for listening.

  3. #23
    Sith Warrior darth_chasm's Avatar
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    Welcome aboard. The calculation is correct; however, 10 watts is extremely large and much more than you would need (2 watts). Fine if you have room for it, just want to make sure you are aware.
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  4. #24

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    This was very helpful! Cheers!

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