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#402
04/13/2004, 08:58 AM
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http://www.reefs.org/library/talklog...ee_060202.html
Check out this page for a good overview of the light spectrum needed to provide proper energy for photosynthetic stony coral. I am still going through this information with which I will try and make a breakdown of how many bulbs and which wavelengths I need to cover. The good thing about using LED bulbs is that you can focus in on a certain wavelength depending on your needs. I'm at work right now and haven't had time to read through this information. I plan on making a LED setup for my 10g so I read through this information and plan accordingly. I plan on having around 40-80 led lights under there for some initial xenia experiments. If anyone wants to help I'm open to information. I will update the info later on today |
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#403
04/13/2004, 05:58 PM
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Just tagging along here, but I find this very intersting. I plan to make a LED system once my tank is finished in early fall.
__________________
People ask me "Do you know you are talking to yourself?". I tell them "Yes, it's the only way I can have a intelligent conversation". They just smile and agree every time. Go figure. |
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#404
04/13/2004, 06:01 PM
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I'm doing a moonlight setup here really soon, just need to figure out a power source. - I have tons of 32v ones @ 1560mA laying around.. I suppose I could supply them with 3.2v and just run 10 of them in series
 that would work, right?
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#407
04/13/2004, 07:10 PM
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go here.
http://www.projectx.com/Kits/LEDNotes/ for the time delay relays. i dont remember where i found the informaiton i was looking at but this is kinda simmilar. http://www.electronickits.com/kit/co...lec/ck1614.htm however for the price of it you might as well get 3 timers and wire 3 different power sources. unless you feel like wiring a old alarm clock with the wires on the minute hands and contacts.. make it look like an old bomb!!! |
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#408
04/13/2004, 08:16 PM
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Im not sure if this thread or the websites on the thread have been added already but this guy has wat seems like some really powerful new type of LEDs even though its just a nano i just thought i would throw up the idea of these new LEDs.
http://www.nano-reef.com/forums/show...threadid=22879 ...i hope im not makin a fool of myself b/c i really dont know much about LEDs but im learnin steadily... |
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#410
04/13/2004, 09:06 PM
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well ive read up to like pg.10 but my mind is on like overload
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#412
04/14/2004, 07:10 AM
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bzzbee2,
Thanks for the timer, a great little product. If you find any other ones let me know. I will try and find some more on my own though. I drew up a schematic for my 10g nano but would like some feedback on what everyone thinks. It will have roughly 60whites and 40blues. Whites will be these: http://cgi.ebay.com/ws/eBayISAPI.dll...808743338&rd=1 Blues: http://cgi.ebay.com/ws/eBayISAPI.dll...809255664&rd=1 The design is broken into 1.25" increments across a 20"x10" design. It would be 13 led lights going across long ways and 7 down. With 1 in 3 being blue. Using the timer I would make a delay on/off system. I'm drawing up my "master plan" and once I get it up here I would like some feedback. Give me some time i'm at work! |
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#413
04/15/2004, 03:52 PM
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Fiber optic
Would it be possible to alleviate the density issue and get better coverage for cheaper $ by using a fiber cable. Take some fiber optic cables, even the type that your kids get with those flashlights and concentrate them at the output of an high output LED.
This was you don't have to wire as much and get the coverage and flexbility at the fiber output end. Just an idea 
__________________
"This is the Handle" Armageddon |
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#414
04/15/2004, 03:58 PM
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Hmm.. perhaps - atleat that way you could have a bundle. but the intensity would suck coming from a fiber element. If you could get fiber elements thick enough to be worth it, then perhaps.. but even in that case, not worth it.
And routing that many fiber cables would be a pain in the arse. |
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#415
04/18/2004, 03:01 PM
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Very interesting thread. I'm sure someday these lighting systems will be commercially available.
I had a couple of thoughts. Since reading this thread, I find myself looking a lot more closely at Traffic lights. I notice all most all of them have lights that are burnt out or not working. If and when these systems become available, I guess they'll have to come up with a way to replace a burnt out LED. Speaking of Traffic lights, someone knocked one over near my house yesterday. While it was on the ground, I took a look at it. It looks like it it could fit on the top of a tank. If someone where to be able to switch out the colors and rig it to light all three at the same time, I think it would work pretty well. Perhaps a traffic light manufacturer will be one of the first to bring these to market. Best of luck, Roy |
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#416
04/18/2004, 04:33 PM
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I read this whole thread its a beast that is for sure. I like the idea but I don't think Regular leds are quite ready for the challenge maybe those Luxeons or UFO are ready but cost makes them not as Good.
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#417
04/18/2004, 07:29 PM
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Just wanted to chime in again after looking around some more on the web - it seems that these 10000 mcd LEDs put out about 2-3 lumens of light, while the 1W luxeons or UFOs put out about 20-30. The 5W versions put out 120 lumens, but they only last for 1000 hours, so that wouldn't even make it a year over a tank with a regular lighting cycle.
To add on to what Trickman said, whild crusing down the NJ turnpike I noticed some new billboards that DITech is adversising with and it looks like they are using some sort of high-output LEDs - maybe luxeons - these billboards also had a lot of burnt-out LED's, hope that it's a not a problem with these LEDs and more of an issue of good wiring and adequate heat-sink use. |
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#418
04/18/2004, 07:48 PM
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10000 mcds put out 2-3 lumens? and 1W luxeons put out 20-30.. hmmm that's interesting. Because 10000 mcds only use .066 watts each, so 10 of them is still 66% of the luxeons with the same output. Interesting indeed.
I've decided to ditch my led project, since it really isn't putting out enough light that I'm happy with over the area (for comparison I grabbed the 15W NO fluorescent from my 10G tank and put it over the area and I definately can tell there's extra light there (of course this bulb had a more purplish hue to it, so that might be the case. I spaced my leds 1 inch apart, I think that is probably a bit too far to be useful, although my pics do make it look like a lot of light, I really don't know how much light it really is. So on that note, anyone want to buy some 10000mcd white leds? Already wired to a board with resistors How about some 470nm blues? For a moonlight project? I can stuff some in an evelope and give you a steal on shipping. Or some 420nm violets? (nice actinic suppliment ). Btw the reason I'm switching gears is I got my first (full month of tank running) electric bill, and it really wasn't that much to the point of where I could not distinguish it from any other month, so I'm thinking I"ll get a small watt MH bulb and put that over the empty space maybe.
__________________
Mike |
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#419
04/18/2004, 07:56 PM
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Quote:
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#420
04/18/2004, 08:02 PM
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i am about to complete my Led setup.... using veroboard i've got 60 whites and 15 blues on it. I am using about 5 of these boards so that's 300 whites and 75 blues....
Will post some pics when ready.... by my calculation... each board is about 18W so 5 would make it 90W. |
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#425
04/19/2004, 12:26 PM
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Dang thats pretty cool.. very nice. maybe its the pics. but there seem to be some very shaded areas. with my MH's theres tons of lighting under overhangs... could this be because of their directional lighting. Looks AWESOME!!! how much do you have invested so far?
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