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    rtrslrtrr's Avatar
    rtrslrtrr Posts: 1, Reputation: 1
    New Member
     
    #1

    Jan 12, 2019, 07:08 AM
    When using leds can you run 1 wire and connect them all parallel
    I am making a model I want to light up using led's
    Can I connect them in a parallel or series circuit
    jlisenbe's Avatar
    jlisenbe Posts: 3,248, Reputation: 153
    Well & Pump Expert
     
    #2

    Jan 12, 2019, 07:29 AM
    You can do it either way, but in series the resistance builds as you add lights, so the lights get dimmer and dimmer as you add more of them. Parallel is the way to go. However, it can't be done by running one wire. It will require two wires between each light.
    ma0641's Avatar
    ma0641 Posts: 15,681, Reputation: 1012
    Uber Member
     
    #3

    Jan 12, 2019, 06:21 PM
    Be careful of three things. Make sure that the voltage is correct, the current supply isn't too great and remember that LED's have a positive and negative side. You may need a series resistor to cut down the current.
    https://www.sparkfun.com/tutorials/219

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