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Thread: Light help-Has anyone used these LED's?

  1. #11

    Join Date
    May 2014
    Location
    USA
    Posts
    9
    How are these lights working out guys?

  2. #12

    Join Date
    Nov 2013
    Location
    USA
    Posts
    23
    I had two and added one more on a 11 x 7 upflow screen and I am vert pleased with their performance. I harvest 100-120 grams of wet (squeezed) green algae every 8 days. They are a bit long at 12" so you need a long screen to utilize their light pattern efficiently. I am pleased with the selection.

  3. #13

    Join Date
    Jul 2014
    Location
    USA
    Posts
    2
    I am new to algae scrubbers so I bought one of these to try on my 100 gallon goldfish tank with nitrates around 100-120 ppm. My original idea was a 3"x12" algae turf scrubber but that was difficult to get going. It turns out that this light can be modified into a rectangular array since their design is segmented into 3 independent controller boards with 3 x 1W LED on each. I used a hacksaw to chop it into three pieces and then soldered wires to join the positive and negative rails. Don't do this unless you know what you are doing - it makes a mess of aluminum filings, silicone, etc. Also, the hacksaw shorted out the boards by smearing a thin layer of aluminum on the sides of the circuit board which resulted in the ground plane and +12V traces connected. I had to clean it off with a file until the continuity tester didn't show a short circuit.

    Now I use it on an upflow scrubber and after 20 days it is showing some growth.Click image for larger version

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  4. #14
    Administrator
    Join Date
    Oct 2008
    Location
    Salt Lake City, Utah, USA
    Posts
    10,565
    Welcome.

    Looks like it will fill in nicely.

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