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LEDs and resistors

Discussion in 'LEDs and Optoelectronics' started by tarrigo, Oct 19, 2010.

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  1. tarrigo


    Oct 19, 2010
    I have a 3.7 volt power source and a LED light that only supports up to 2.7 volts. So, I assume I need a resistor between the positive power source and the positive end of the LED.

    Would I be correct?
  2. LTX71CM


    May 23, 2010
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