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Thread: 100W RGB LED driver board for flood lights (WS2811)

  1. #1
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    Default 100W RGB LED driver board for flood lights (WS2811)

    Prototype board works as expected, but more tests are needed.

    100w.jpg
    “If somebody offers you an amazing opportunity but you are not sure you can do it, say yes – then learn how to do it later!” ― Richard Branson
    My [URL="https://www.tindie.com/stores/RobG/"]Tindie[/URL] store

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  3. #2
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    Default Re: 100W RGB LED driver board for flood lights (WS2811)

    how many pounds of aluminum to keep that puppy cool?

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  5. #3
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    Default Re: 100W RGB LED driver board for flood lights (WS2811)

    A nice CPU sink will do. I am using one w/o fan and it's not that bad. Will do some long period, full power tests today.
    “If somebody offers you an amazing opportunity but you are not sure you can do it, say yes – then learn how to do it later!” ― Richard Branson
    My [URL="https://www.tindie.com/stores/RobG/"]Tindie[/URL] store

  6. #4
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    Default Re: 100W RGB LED driver board for flood lights (WS2811)

    Did more tests today, and everithing looks good.
    There's no flicker, but I will have to put the board in enclosure and test with pigtails and Ts to be 100% sure.
    At full brightness, CPU heatsink got to 80C in less than 5 minutes (PCB was equally hot,) so fan is a must.
    With the fan, temp of the sink was a steady 35C.

    I will now try to find a good source of LEDs and figure out the final cost.
    I am also considering making generic board (LED connected via wires.)
    “If somebody offers you an amazing opportunity but you are not sure you can do it, say yes – then learn how to do it later!” ― Richard Branson
    My [URL="https://www.tindie.com/stores/RobG/"]Tindie[/URL] store

  7. #5
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    Default Re: 100W RGB LED driver board for flood lights (WS2811)

    What voltage will this require? I'm guessing ~36v?

  8. #6
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    Default Re: 100W RGB LED driver board for flood lights (WS2811)

    Any way to get 7-12v off the board to power a fan?

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  10. #7
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    Default Re: 100W RGB LED driver board for flood lights (WS2811)

    Yes, 36V @ 3A.

    12V option is a possibility, but I my thinking was that using external DC-DC will give you flexibility.
    “If somebody offers you an amazing opportunity but you are not sure you can do it, say yes – then learn how to do it later!” ― Richard Branson
    My [URL="https://www.tindie.com/stores/RobG/"]Tindie[/URL] store

  11. #8
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    Default Re: 100W RGB LED driver board for flood lights (WS2811)

    Yeah, I guess DC-DC lets you pick the fan or even adjust the speed depending on the fan.

  12. #9
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    Default Re: 100W RGB LED driver board for flood lights (WS2811)

    I will make ~50 of the 100W boards by the end of April. This is just a pilot and I hope to have more in May.
    You can sign up here
    “If somebody offers you an amazing opportunity but you are not sure you can do it, say yes – then learn how to do it later!” ― Richard Branson
    My [URL="https://www.tindie.com/stores/RobG/"]Tindie[/URL] store

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  14. #10
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    Default Re: 100W RGB LED driver board for flood lights (WS2811)

    So sorry for the noob question.
    Do you have a list/links to needed materials to complete this build. I ordered 2 100w versions to get my feet wet.

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