Reef Angel Forum

You think it could be wired in series so the original knobs would still work? I know..asking a lot here

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.

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.

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.

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?

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

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.

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.

Yes, but is the fixture just a led string with no drivers?

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.

I hooked mine up the way DCTrojan did back on page 5 and it works fine. Rather than cutting the end off the 36v ps that he did I got a size M male connection from Radio Shack and just ran a wire from the output of the Meanwell drivers, put the male adapter on it and plugged the lights into that.



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Reef Radiance now sells a kit for their DM-155e which is similar to the current Evergrow D120/D2040 lights. They tested with the fixture that I own and confirmed it will work. I went ahead and placed an order. Let you all know how it goes soon.