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Some LED Help


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  1. #11

    Default

    Hi

    Almost done the LED's, now thinking about the drivers.

    Is it possible to house them in their own plastic box? I want to make it all organised with all the drivers in the box. the thing I was worried about was the heat of the drivers, will they be ok?

    Cheers

  2. #12
    evilc66 - Reefkeeper CR Member
    Join Date
    Jan 2010
    Location
    Shelby Twp. MI
    Posts
    297

    Default

    If the box is fairly small, then you will want to vent the top at the very least to help remove hot air. If you are using a larger box with more interior room than you actually need, then you can get away with keeping it sealed.

  3. #13

    Default

    The box is 250 x 200 x 60 mm, I think I will vent as well just to be sure

    Thanks for the info

  4. #14

    Default

    Right, I have finally built the unit.

    I would just like some clarification on the power to the LED's, I have set them up as 800ma to the RB's xpe and the CW's xpg. Is this correct, or should I adjust this to something else?

    cheers

    Happy New Year to All

  5. #15
    evilc66 - Reefkeeper CR Member
    Join Date
    Jan 2010
    Location
    Shelby Twp. MI
    Posts
    297

    Default

    You will most likely be fine leaving it there, unless your tank is particularly deep.

  6. #16

    Default

    thanks for this, much appreciated

  7. #17

    Default

    Had the LED's running for the last few days, I have started them on 40% at the moment and am going to ramp them up over a few week.

    My question is how do I know if my heatsink is doing its job properly. I had a tmc tile and it used to get really hot to touch, do I just keep checking it to make sure that it doesnt get any hotter?

    Many thanks

  8. #18
    evilc66 - Reefkeeper CR Member
    Join Date
    Jan 2010
    Location
    Shelby Twp. MI
    Posts
    297

    Default

    Many of us like to have the maximum heatsink temperature where you can hold your hand on it for a few seconds before it starts to get uncomfortable (about 140F/60C). Heatsink temperature isn't the best indicator of performance though, as you really should be looking at the LED die temperature, but it's more difficult to measure.

  9. #19

    Default

    ok, thanks for this, its not even hot yet then

    cheers

  10. #20

    Default

    As my first LED build has now finished, I am thinking about building another to go over the tank.

    For the old one I used meanwell dimmable driver, which worked very well.

    For the new one I want to use a non dimmable driver as it will make it a bit cheaper, but would like to stick to the meanwell version. Can anyone point me in the direction of a meanwell driver that will power 12 CREE XPG/XPE Leds

    Many thanks

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