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Thread: DIY Cree XML LED Lighting for 150G Reply to Thread
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Topic Review (Newest First)
11-21-2013 03:47 PM
skanderson any pics of how the lights look over the tank. i am interested in the color rendition of plants and fish with so much cool white led. there seems to be a movement away from the cree cool whites even in some reefer forums due to poor color rendition making things looks washed out. over my vivs i prefer the color of 2 to1 warm cool to the other way around. and i prefer the color of my 4k bridgelux to either of those combos. my new tank will have 4 k bridgelux with a bunch of lower wattage leds added for flexability in color and adder pop. also i love the aluminum 80/20. i used it on my viv led build and found it very easy to work with.
11-21-2013 05:02 AM
bluediscus Hi fizzout, i know this is an old thread but do you have any updates of your build with the typhoon controller? I'm about to make a similar setup as yours and am wondering, are you able to dim your Meanwell ELN-60-27p completely?
07-15-2012 03:34 AM
fizzout
Quote:
Originally Posted by Wasserpest View Post
Arghh... can you send the power supply back? Do you think the dimming might have shortened the life of that LED?
Yeah ... it was from China. Fortunately it was only $30. I guess you get what you pay for. I probably can use the power supply for something one day (I hope). As for the dimming, I wasn't using dimming, so I don't think it had anything to do with it. But I do wonder what caused the LED to fail.
07-15-2012 03:20 AM
Wasserpest Arghh... can you send the power supply back? Do you think the dimming might have shortened the life of that LED?
07-14-2012 07:07 PM
fizzout Well, the other power supply finally showed up. I installed the new power supply and that showed that instead of the Meanwell driver having failed, it was one of the LEDs that failed. The Meanwell driver is working fine. I replaced the bad LED (which was easy to find), and the string now works. Since the Meanwell drivers are all working, I am not using the single power supply, which didn't actually work that well anyhow.
06-30-2012 03:58 AM
fizzout
LED Driver Failed

One of my Meanwell ELN-60-27P failed. I think it overheated. It looks like there is a small amount of current running to the LEDs, but the driver is fried. I ordered another power supplly (200w, 24v, 8.3A) to power all three banks of LEDs together. I gave up on the idea of dimmig the LEDs. I will adjust the height of the LEDs if I have to change the light intensity. At least for now, that is what I'm doing. Here is a shot of the LEDs with one of the banks lit very dimly.

Attachment 49999
06-19-2012 03:36 PM
jcgd
Quote:
Originally Posted by monkeyruler90 View Post
Yeah I used the Dremel flat disk attachment to cut out a hole on the side. Fits pretty well now.

I wish LEDGroupBuy would say something about incompatibility with other stars
I used only ledgroupbuy. And they were still incompatible!
06-19-2012 01:34 PM
monkeyruler90 Yeah I used the Dremel flat disk attachment to cut out a hole on the side. Fits pretty well now.

I wish LEDGroupBuy would say something about incompatibility with other stars
06-17-2012 04:19 PM
fizzout
Quote:
Originally Posted by jcgd View Post
Oh, maybe we have different ones. Mine came in two parts and you are supposed to snap them all together.
I think you are right. I checked one of the spares and it's not obvious that it can be taken apart and used without the holder. Where did you get your lens?
06-17-2012 05:17 AM
jcgd Oh, maybe we have different ones. Mine came in two parts and you are supposed to snap them all together.
06-17-2012 04:39 AM
fizzout Really? I didn't even think that the lens could be taken out of the holder ... duh ... feeling stupid now.
06-17-2012 04:22 AM
jcgd I left the little holder part off and only installed the actual clear cone part of the lens. Works fine for me, just an idea. The white lens holder was a horrible fit. Between the start and my solder job, there wouldn't be much left by the time it would fit.
06-17-2012 03:23 AM
fizzout
Quote:
Originally Posted by monkeyruler90 View Post
eek
so i received my LEDS from Rapidled.com and the optics from ledgroupbuy.com only to learn this lesson the hard way! The cut outs don't match the pads of the stars... guess i'm going to have to use the soldering iron to melt the plastic around the holes
I know how you feel. You might consider using a Drumel tool instead of the soldering iron, which was a little hard to control. I wish I had thought of that before. Make sure you leave enough of the double stick adhesive to stick on the star, though I didn't have any issue in that way.
06-17-2012 02:01 AM
monkeyruler90
Quote:
Originally Posted by fizzout View Post

Anyhow, I wanted to warn everyone that optics for XML are not readily interchangeable. However, the XML LEDs from LEDGroupBuy fit perfectly with the optics, as they had opposite side soldering pads that matched the optics.
eek
so i received my LEDS from Rapidled.com and the optics from ledgroupbuy.com only to learn this lesson the hard way! The cut outs don't match the pads of the stars... guess i'm going to have to use the soldering iron to melt the plastic around the holes
06-15-2012 04:54 AM
fizzout
Quote:
Originally Posted by monkeyruler90 View Post
Looks amazing! I'm planning on building an led light with XML U2s and was wondering how hot they were going to get. Thanks for posing your experiences with them!!
Thanks. I really enjoyed making this light. Everything fell into place very nicely. Ultimately, I don't think the LEDs are getting too hot (since I can touch the aluminum without discomfort when there is not fan). Still, the spec says that the LED will last indefinitely when kept at 30 deg Celsius so I'm using a fan across them. I don't know, I will probably replace these lights sooner than before the LEDs wear out.
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