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Thread: Power Supply Setup Question

  1. #1
    Join Date
    Dec 2017
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    Default Power Supply Setup Question

    I have a question about power supplies. I am new to pixels however have most of everything i need and set up except the lights portion. I have my wireless network setup (EdgeRouter X with NanoStation M2) with my ESPixelSticks bought in hand and set up. I have 3 strands of pixels currently that I was able to test with but when I tried to purchase all the lights I needed back in July/August from diyledexpress i didn't realize i had to preorder such a large quantity, I thought I could buy them whenever I was ready. I have been learning XLights so this isn't some project I wont follow through with, my wife & kids want this as much as I do. Ok enough of the back story..My question is I have 2 Meanwell 150W-12V power supplies, but I am trying to figure out how would be the best way to wire the pixels.

    It has 2 V+ Outputs on each power supply. If I need to connect more than 2 runs to the power supply do I connect them directly to the power supply, say like 4-6 runs of Pixels. I have more than this but I was planning on splitting up the strands evenly between the power supplies of (12V) pixels (each run 100 pixel or less) or would I be better to use 4 port power distribution board (5 amps each port) connected to one of ports of the V+ on the PS? Or can I just run say 6 wires directly from the PS say 3 wires from each V+ to each strand. The wire lengths would be less than 20' if that. Also If I need to power inject into a strand because I think I might have 1 run that is like 108 pixels or more I will be running roughly 300 pixels per ESPixelStick. I am at work & can't look at my XLights setup set to my longest single run calculated based off 4" spacing") However would I power inject directly off the power supply so add another wire coming out of V+ or is this were the power distribution board comes in handy? If I need to order another distro card
    I hope my questions make sense. Also I do have the distribution block also, but I bought this just in case but wont be hurt if I can't use it.

    Thanks

  2. #2
    Join Date
    Jan 2017
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    Default Re: Power Supply Setup Question

    I would think it would be best to run the power from the transformers to the fused distribution board. Then go from the distribution board to the pixels.

  3. #3
    Join Date
    May 2007
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    Long Island, NY
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    Default Re: Power Supply Setup Question

    With the short distances you indicated it might be cheaper to just home run each set directly off the power supply. However, depending on how many runs you are talking about it may be easier to get a distribution block instead of trying to fix 30 conductors under 2 screws. You could run short larger conductors to a distribution block at the power supply or run a couple sets of larger conductors to multiple distribution blocks at either end of the display. This is all dependant on the current you will be pulling on each set of pixels as well as distance.

    A couple things come to mind.
    Are you going to fuse each set of pixels?
    Are the power supplies going to be centrally located in the display?
    Thanks,
    Brian, your friendly site Admin.

  4. #4
    Join Date
    Dec 2017
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    Default Re: Power Supply Setup Question

    Yeah my thought for setup was going to break the house into left and right. Or since they are not that expensive was to maybe get a 3rd and run top, bottom (left side) and the right side of the house with another one. That was going to be a follow up question was how do you guys plug so many (if you do) wires into the output of the power supplies. This was what I wasn't sure about was that I bought the power distro board so I could fuse each section hooked up to the ESPixelSticks (other than the fuse that is on the board) but did not know if this was necessary but if it wasn't then I was trying to figure how everyone hooks all their pieces to just a few power supplies. If i do only run 2 power supplies though (Yes they can easily be centrally located, but if they do not need to be I can split them up to the side of the house they will be supplying power to. Would you guys recommend using the power distro boards for each strand so that they are fused and i can have 4 fused outputs per V+ assuming i stay under the power rating for each supply.

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