LED Lighting Clearly LEDs

Pic of my clearlyleds.com LED panel on a small reef.


<a href=showthread.php?s=&postid=9299304#post9299304 target=_blank>Originally posted</a> by draleigh
pics pics pics. I am considering using LEDs on my tank for many reasons but after reading through the ClearlyLEDs website i believe it is more possible then before. I don't see why it wouldn't work. So for a few hundred i think it is worth trying, i have spent more then that on stuff i didn't really need for the tank.

So bobbyreefer, you got some pics you can upload and show us.
147891RC_post_size.JPG
 
Bobby,

So I see you finally got the Digicam to show us some pictures. Can you tell us anything about your impressions from using the light.

From the photo it looks like you're holding it over the nano. Is it normally used on this tank or did you grab it over for show?

I think we're all interested in hearing your opinions about it's effectiveness. Also do you have any specs on the unit you have?
For the 200+ LEDs what wattage does it consume? In the photo are you using ALL the LEDs or did you leave the blue arrays off, etc???

Thanks.
:)
 
Hi folks.

I'm always happy when a find a thread becomes useful and I'm hoping this helps out a bit.

Tullio was actually nice enough to email me back with some more info and opinions of his own. rather than paraphrase and get something wrong I'll just paste it here...

---
First off there was some minor errors in the data, it was actually 15 watts- 3 five watt LED's and as Mike admitted there was no reflectors for the led's which had a 180 degree radiation pattern which meant a lot of light was actually lost or absorbed. If there had been reflectors the light output would have easily acheived a PAR reading of between 100-180 throughout the aquarium well above the 80 or higher that was believed sufficient at the time. Plus this aquarium was literally the first to demonstrate the future of LED's as we know it today.

Today we have special reflectors and the luminous efficiency of our LED's has gone up significantly. But even back then if you looked at the picture the tank was actually lit up pretty well and the corals where happy. Plus conventional meters do not always accurately plot led output. There is a lot more to understanding and measuring the benefits of LED's than simply adding an array and lighting it up.

There is a thing I like to call usable PAR which essentially means there are very specific wavelengths of light that corals respond to. With Halides and other systems you can show me all the luminous data and PAR data you like it essentially means they need a lot of light just to satisfy the spectral requirements of corals to thrive.

With LED's we can focus specifically on the spectrum we want to essentially color tune to the specific wavelengths of light we are targeting therefor giving the LED an upper hand at usable spectral output versus lumens! If you have the chance to catch one of my talks this year I always demonstrate the fixtures with my spectrometer and you would clearly see that LED's in many ways have come a long way since then. The only draw back is the systems do cost more, same as the first computers when they first came out. As consumer demand grows and production rises costs comes down and so forth.
---

'course, I did write him back and ask about the units he's designing and if he's going to be selling directly or through distributors.

I'm a bit torn by the findings since I was leaning toward using what I learned from Mike and trying to place coral at different heights in my tank giving them the light they require. On the flip side, I'm concerned with over-lighting them spectrally and having to frag corals likecrazy :)

I'm still a firm believer that lighting remains oneof the most complex components of fish keeping esp. b/c we combine animals who tend to live at vastly different depths.
 
LED Panel

LED Panel

I thought I posted A reply to your message already "Wired" but I don't see it anywhere.

The Clearly LEDs panel is held over the tank you saw for the pic but remains on the tank. Both Blue and white Lights were on for that picture.

Somewhere I read the LED panels draw around 10 watts total. Everything is great so far.
 
Well, don't to be a party pooper, but I'm waiting for more reviews before I send my money.

I definitely looks promising.
 
Daytonians,

That might be a good idea.

Tullio actually offered to speak to me on the phone so I took him up on it. I don't know if he'll be speaking anywhere near me soon, but he really does know his stuff and has both internal and Gov't data to back up what he says. Additionally, his company is basically a contract manufacturing firm that specs lighting fixtures for the guys who distribute them.

I don't think that anyting he said was confidential so I'll post it here and if someone thinks its bad they can remove it.

Tullio has finished the work on a new LED fixture but the marketing side of things needs to ramp up and it will likely be a few months before they are production ready. He may have been wearing his 'sales hat' but he said that his company is the exclusive Luxeon certified company for aquatics. As such, he requests specific bin sets of the LEDs that matches the wavelengths he is looking for. We discussed my 9 gallon tank design and he agreed that it would only take a handful of LEDs to do the job. He said that the power draw would certainly be no more than 2/3 of a Hallide (I was hoping for less), though we didn't discuss the heat it generates which I assume is less.

At present, it seems that the anticipated cost is still to much for my amateur budget but the technology is certainly coming of age and as uptake occurs pricing will eventually fall. For those interested, he said the units will be sold by Omega1. Since, Tullio's company has built other items for them before I didn't think that this was in any way proprietary knowledge you couldn't get from their own website.

If someone does happen to catch Tullio in his travels I'd be interested in hearing about it. He said that he does demothe units and carries a spectrometer with him.

Cheers.
 
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