Dual Intensity Dual LED Integration Help

Discussion in 'The Projects Forum' started by tome10, Aug 11, 2014.

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  1. tome10

    Thread Starter New Member

    Aug 10, 2014
    I have a 48 LED Puck. It has a Yellow wire (Low Intensity), Red wire (High Intensity), and a Black wire (Negative). It works fine by itself.
    However, I added a second LED strip. one of those that you cut to length, and solder the Red and Black wires too.
    I put a 100Ohm Resistor for Low Intensity and power the LED after the Resistor for High Intensity.
    It's when I try connecting these two together, the Puck doesn't seem to function correctly. I think I've figured out that the Puck has a resistor built in that is interfering with my throwing everything together and working. If I add a 100Ohm Resistor to the Strip, everything magically starts working, but in the end I lose 100ohm of Light from the Strip. I've just thought about the idea of maybe the Resistor needs to go on the Negative side of the strip, but I'm not sure. How do I balance this Circuit, and not lose the 100Ohm of light from the Strip? And I watched a video about these strips, and the guy had a bunch of Diodes all over the place. Do I need Diodes in this scenario?
    Also, I tried hooking these up in series, but that didn't work at all. I have the two Negative Wires hooked together, and the Low Intensity (Yellow) wires hooked together, and the High Intensity (Red) hooked together. This is Parallel.
  2. bertus


    Apr 5, 2008
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