Joe's 100W Multichip LED build

[RTMA]

As for the spectrum, it hits them as well as a 14k halide would. At least that's what I would assume. The royal blue crees and the 420nm T5s hit the the other chlorophyll spectrums corals need.

 

[weezyfella]

Impressive and affordable led solution. If you can supplement then with some actinics or royal blue leds it would give you the 20k feel. Nice work.

 

[ABlueReef]

Happened to stumble on this thread, this is pretty sweet.

 

[RTMA]

Impressive and affordable led solution. If you can supplement then with some actinics or royal blue leds it would give you the 20k feel. Nice work.

Thanks. The fixture has 26 3 watt Cree XPE royal blues and two T5 420nm pure actinics for supplementation.

Happened to stumble on this thread, this is pretty sweet.

Thanks.

Without the fans these things get very hot, untouchable hot. Just FYI. I have the fans turn on on the same plug as the LEDs. hopefully the corals will respond well. Only time will tell at this point.

 

[Elvishfrost]

Very nice work. I'll definitely be following along to see how your tank responds to your new lighting. How was your coverage without the lumenarc's? Did you have a pic of that, or did I just miss it?

 

[noplay180]

How many if these would you recommend on a 96x 30 x30 mixed reef

 

[RTMA]

Very nice work. I'll definitely be following along to see how your tank responds to your new lighting. How was your coverage without the lumenarc's? Did you have a pic of that, or did I just miss it?

I didnt take a pic because I had it mounted with some 2x4s and it wasn't very stable. That's when I saw the rivets of the lumenarc and the idea struck me. I think I may fabricate an acrylic holder at some point so that I can mount some blues closer to the middle.

How many if these would you recommend on a 96x 30 x30 mixed reef

I would say 1 for every 2 foot section so in your case. 4 should do it. Just like you would do MH. My tank is only 2 foot tall so get some good Par on the sand directly under. 30" would be a bit less. But 30" wide would be more light towards the sides. Should be perfect for lower light LPS. Good luck.

 

[noplay180]

It's there a lense that would allow me to keep more i would like to do sps.

 

[RTMA]

It's there a lense that would allow me to keep more i would like to do sps.

The standard lens for these provide the same par as my metal halides so keeping sps will not be an issue. The higher you place the sps, the more par it gets. With these LEDs I have some sps on the sand.

We'll see how the do and if they keep up the same growth they have shown under the halides.

 

[noplay180]

Thanks for all the info! have you test these without reflectors?

 

[noplay180]

Joe are you using blue leds also or should four of these be all I need

 

[srusso]

Any updates Joe? How are the corals liking the new lights? What are the PAR readings? You like them?

 

[RTMA]

Missed a few posts there. The corals, atleast the apsis responding very well. Growth has been steady, dosing about 130 ml of alk per day so something are using it. Some colonies have added 1/4 to 1/2 inch in new growth since I switched.

Temp stability has been great along with a lot less power consumption.

 

[noplay180]

Do you have any pictures

 

[Orochimaru]

I wonder if this is better since we might not need to supplement more blue?

http://www.ebay.com/itm/SMD-100w-LE...163?pt=LH_DefaultDomain_0&hash=item416940f1f3

 

[RTMA]

I'll see if I can post some new pics tonight.

Orochi - 30K seems like it would work, price is great too.

 

[srusso]

Any updates? How are the LEDs doing? Still like them? Corals seem fine?

 

[octoreef]

Hi RTMA, my compliments for your built. Have you some updated info for hungry DIYer people like us?

 

[Spazdad]

Great Job. I will be building a unit with 4 100w 4 50w and a random assortment of 3-10w chips for my 400.

Are your drivers dc-dc or ac-dc

 

[arc eye]

Please give us an update! How is the tank looking/corals responding?