Help please with confusing LED question

Discussion in 'The Projects Forum' started by Zilikken, Aug 20, 2012.

  1. Zilikken

    Thread Starter New Member

    Jun 18, 2012
    2
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    I am new to all of this. I am doing a project that require 13 LED's, most of them are blue and hooked up to a 9v battery via parallel with each parallel a series of 2 LEDs. I have most of them hooked up but when I connect one single white LED all of the other blue LEDs turn off and only the single white LED is on. Now I don't think I am doing anything wrong, I am connecting it to the rig like the other LEDs.
     
  2. #12

    Expert

    Nov 30, 2010
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  3. JDT

    Well-Known Member

    Feb 12, 2009
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    I think it is because all your LEDs are in parallel.

    Wire so that each LED has it's own series resistor from the 9V supply.
     
  4. gerty

    AAC Fanatic!

    Aug 30, 2007
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    Can you post a drawing of what you have and how it's connected.
    That'll make it easier to help
     
  5. ramancini8

    Member

    Jul 18, 2012
    442
    118
    Apparently the white led hogs the current when you hook it up. Try a series resistor to limit the current.
     
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