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  1. #1

    Join Date
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    You needed one! - korith   LOL, For putting up with me :-) - Cliff   

    Default How to make LED lighting?


    0 Not allowed!
    Hey guys I want more light with less electricity, I want to go LED , I want to use 5mm super bright white led 3v 20ma bulbs , I'm looking to hook up about 20-30, would it be best to run in series or parallel ? And do I use 1 resistor at a higher wattage or do I put a resistor per LED?

  2. #2

    Join Date
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    New Hampshire
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    Just because... - alfcea   for starting a saltwater tank - cocoa_pleco   Tanks really coming together! - oldhead   merry christmas - cocoa_pleco   Merry Christmas and Happy New Year!  :) - KrytterKrys   

    Default


    0 Not allowed!
    Do you have a link to the lights your using and the ballast as well? Wiring depends on what your using

    I have a 10 gallon reef which has 16 cree xr-e 3 watt bulbs and 8 cool whites are on a meanwell ELN60-48D dimmable ballast, and 8 royal blue are on a meanwell lpc 35-700 ballast. All bulbs are wired in a series. If you wire in a series no resistors are needed but you have to be sure to use the minimum number of leds that the ballast requires to work or you'll fry the ballast.

    29 gallon-planted community

    20 long frag tank
    75 gal-planted goldfish

    75 gallon mixed reef with 20 gallon sump






  3. #3

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    You needed one! - korith   LOL, For putting up with me :-) - Cliff   

    Default


    0 Not allowed!
    im doing it in a freshwater tank with fake plants- ive been googleing videos and such and some folks have just used the ebay japan cheap LED's from ebay lol- ive seen it done on youtube and what not- i was gonna pick up a balast but i dont know what balast to get - but is a balast needed if each led has a resistor?

  4. #4

    Join Date
    Nov 2010
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    East Lansing, Michigan, USA
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    Default


    0 Not allowed!
    It would be simpler to use a couple of 3 watt emitters and an LED driver designed to run them. 20 to 30 individual LEDs are going to be a lot more work to mount.

  5. #5

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    Default


    0 Not allowed!
    Would u happen to have a link to those emitters I can't seem to find them

  6. #6

    Join Date
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    Default


    0 Not allowed!
    http://www.satistronics.com
    They are in China. From order to delivery usually takes three weeks or so.

    3W High Power LED Pure White 110-130LM
    * item#: SS-3WW $1.99 each in lots of 5
    3W High Power LED Warm white 80-100LM
    * item#: SS-3WWW $1.99 each in lots of 5

    Power Driver for 1pcs 3 Watt 1x3 Power LED, AC 80V-260V, E26, E27, GU10
    * item#: AD-A3X1W $5.99

    Unfortunately, they aren't currently listing the drivers for three to five or nine to twelve 3w emitters. Prices vary as well. 3 watt LEDs were $1.39 a couple of weeks ago.
    They do list bare drivers, but you'd need to mount them in an electrical enclosure of some kind.
    ************************************************** ***
    http://www.ledgroupbuy.com/
    is where you get in on group pricing for the real deal. Cree emitters.

    http://www.rapidled.com/
    has good products and reasonable prices.

  7. #7

    Join Date
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    Default


    0 Not allowed!
    Sounds like they are a cheaper option than I thought they were. I will have to look into this for moon lights.

  8. #8

    Join Date
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    Default


    0 Not allowed!
    If you can spare some money, order at least one extra driver and extra LED emitters in white. This type of DIY project is one of the more addictive ones.

    The cheapest Aluminum piece I've found for mounting and heat sink is a 1/8" thick, 2" wide, 4 foot aluminum "yard stick". $8.00 at Home Depot.

  9. #9

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    Default


    0 Not allowed!
    I'm still lost on the driver, when I was a kid I had hooked up 4 in parrelle and used an old cd player ac charger to power them since it was only a 3 watt out put and little amps, so what's does the driver do ? And for S&G's if I got 10x3watt led I would get a 30w driver correct ??

  10. #10

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    Just because... - alfcea   for starting a saltwater tank - cocoa_pleco   Tanks really coming together! - oldhead   merry christmas - cocoa_pleco   Merry Christmas and Happy New Year!  :) - KrytterKrys   

    Default


    0 Not allowed!
    You need the driver to convert ac to dc, most leds run on dc, unless it is internally regulated, then it will run on ac.

    Before I went to the crees on my 10 gallon I did run internally regulated LED's. They fit in a gu-10 socket and you just wired them to straight 110 ac in a parallel with no resistors. They also had built in heat sinks and optics

    These were the bulbs
    http://cgi.ebay.com/1pc-GU10-3W-Warm...ht_1578wt_1165

    and these were the sockets

    http://cgi.ebay.com/GU10-LED-Halogen...item25630ebd92

    These would be your cheapest and easiest way to do it. If you shop around you can find different color temperatures and prices. Warm white is like 3500K and cool while is close to 6500K. They worked out pretty good but I wasn't happy with the color for a reef application

    29 gallon-planted community

    20 long frag tank
    75 gal-planted goldfish

    75 gallon mixed reef with 20 gallon sump






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