DIY LED Moonlighting question(s)

Discussion in 'I made this!' started by epsilon, Mar 25, 2010.

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  1. epsilon

    epsilon Feather Star

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    So, i'm planning on doing my own DIY LED setup for my 75g. I'm a little confused on the power supply i should use. I'm going to be using LEDs between 3.8 - 4v each and run them in parallel. Do i need a power supply that simply has a 4v output? Or does it need to add up to the # of LEDs i'm going to use?

    Here's a ruff pictoral version of the layout i'm thinking of.
    [​IMG]

    One other question, what's the best angle/brightness LED to use for this type of application?
     
    epsilon, Mar 25, 2010
    epsilon, Mar 25, 2010
    #1

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  2. epsilon

    epsilon Feather Star

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    My understanding is i just need a 4v ps and that whole string will get the 4v's. But i def could be wrong.
     
    epsilon, Mar 25, 2010
    epsilon, Mar 25, 2010
    #2
  3. rdarris

    rdarris Feather Duster

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    in parallel you need it to be 4V, in series you would need one that was 4x #of LEDs
     
    rdarris, Mar 25, 2010
    rdarris, Mar 25, 2010
    #3
  4. epsilon

    epsilon Feather Star

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    That's what i thought, thanks!
     
    epsilon, Mar 25, 2010
    epsilon, Mar 25, 2010
    #4
  5. epsilon

    epsilon Feather Star

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    How bout that angle/intensity question? Any insight there?
     
    epsilon, Mar 25, 2010
    epsilon, Mar 25, 2010
    #5