Chinese made LED diy

Request new hardware or ideas for the controller
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Joined: Fri Jul 20, 2012 9:42 am
PostPosted: Thu Nov 14, 2013 6:28 am
You think it could be wired in series so the original knobs would still work? I know..asking a lot here :)

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Joined: Sun Mar 17, 2013 8:21 am
PostPosted: Thu Nov 14, 2013 6:48 am
In theory yes, as long as the original potentiometer goes down to zero. I haven't used one of these digital pots before though so I'm not certain.

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Joined: Sun Mar 17, 2013 8:21 am
PostPosted: Thu Nov 14, 2013 6:59 am
Found a library for the chip. https://github.com/RobTillaart/Arduino/ ... ies/AD524X

I need to check my light pots to see what their value is so I order the right part. I need to put in a mouser order tonight and I'm in Dallas so I should have parts by Monday. Hopefully I'll have enough time to play with it next week but work is killing me right now. Need to hit a deadline before I go on vacation week of thanksgiving.
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Location: Davie, FL
PostPosted: Wed Jan 15, 2014 7:12 am
I just ordered my lights.
http://www.ebay.com/itm/300915148718?ss ... 1439.l2649

and I got the LED Drivers from Rapid LED a while back so I'm all set to go, once they come in.

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Joined: Fri Mar 18, 2011 6:47 pm
PostPosted: Wed Jan 15, 2014 10:36 am
Can someone post how you get the meanwell drivers connected to these lights?
I'm having a hard time understanding.
Doesn't the light come with internal driver?
Roberto.
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Location: Davie, FL
PostPosted: Wed Jan 15, 2014 2:00 pm
The only one I know that has done this is DCTrojan and this was his post...

Dctrojan wrote:Okay everyone the LED drivers I bought from rapidleds dim my LEDS! :) I hooked up everything this morning and It seems to be working great so far. All i had to do is cut the old 36V transformers from the line and i replaced it with the meanwell Drivers. I only bought 2 drivers to test before i committed to buying 4 of the drivers, I only hooked up the whites to the drivers. here's a link to the lights and drivers i used.

Ill post a picture and a video of the fixtures once I get the other drivers.

http://www.rapidled.com/mean-well-eln-6 ... le-driver/

http://www.ebay.com/itm/Aquarium-LED-Li ... 0915148718

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Joined: Sun Mar 17, 2013 8:21 am
PostPosted: Wed Jan 15, 2014 3:17 pm
Should be possible with 4 of the meanwells. Cheaper option would be 4 LDD 700mA LDD drivers and a 48v power supply. http://www.ledgroupbuy.com/meanwell-ldd ... ed-driver/

Boards that hold the ldd drivers here: http://www.reefcentral.com/forums/showp ... count=2298

You can send those files to itead and get 10 boards for a little over $20 in just a few weeks.
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Location: Davie, FL
PostPosted: Wed Jan 15, 2014 3:27 pm
I actually have 4 boards and one already made up with 4 1000ma LDD drivers on it and a 400W 48V (meanwell knockoff) power supply that I bought used off someone who started the project and decided to go a different direction, kind of like I did.

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Joined: Fri Mar 18, 2011 6:47 pm
PostPosted: Wed Jan 15, 2014 3:39 pm
Yes, but is the fixture just a led string with no drivers?
Roberto.

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Joined: Sun Mar 17, 2013 8:21 am
PostPosted: Wed Jan 15, 2014 3:47 pm
rimai wrote:Yes, but is the fixture just a led string with no drivers?

Fixture has 4 700mA drivers inside. I think I read they actually put out only 600mA but the LED's are capable of 700mA. 14 LED's on each driver. Simply cut out the old drivers and replace with LDD drivers. LDD can do 52v max. Most LED's have a forward voltage between 3.2v and 3.7v. So worst case: 3.7v * 14 = 51.8v. The math works out. The older ELN meanwell drivers are only rated to 48v so you might be overloading them depending on the LED binning. The 48v power supply that is used with the LDD drivers can be turned up to 52v via a trimpot.
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