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Thread: giant blinding white LED panel

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    Millipede's Avatar
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    giant blinding white LED panel

    I get an email catalog from an electronics surplus and they have this for sale

    http://www.goldmine-elec-products.co...?number=G18748

    do you think it'd be any good for plants??

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    MICKEY's Avatar
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    would be great if you can find a 24v transformer for a good price

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    Sarracenia freak Brie's Avatar
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    Damn thats cheap.. but they dont say anything about its par/pur or kelvin.. It looks to be like those might be in the 8-10k range, so a little too blue for most plants to like.. Mix in a little red or magenta and they'd probably be happier.. but dang, that panel _IS_ super cheap.

    http://www.plantedtank.net/forums/li...efficency.html

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    Lotsa blue bluemax's Avatar
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    Very cheap, indeed and would be fun to experiment with. For what it's worth I usually get my transformers at the Goodwill thrift store where they have a big box of them for $2 each. The trick is finding one in your desired voltage.
    - Mark

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    "Remember, approximately 55 of the 650 LEDs will not light." <---- tee hee

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    Millipede's Avatar
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    well, just replace those with the red LED's brie was talking about

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    mobile's Avatar
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    Chances are that the array is in series/parallel, which would explain why lines of LEDs are out. So there's a possibility that only a few of the LEDs have failed open circuit causing those that are after them to be out of circuit.

    Coincidentally, I found this handy LED array calculator a little while ago: http://led.linear1.org/led.wiz

  8. #8
    Lotsa blue bluemax's Avatar
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    Mobile - dude, that LED array calculator is cool!
    - Mark

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