| General Reef Discussion In this forum we discuss issues related to keeping marine and reef aquariums in a friendly flame-free environment. |
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07-06-2006, 08:18 PM
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#31
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shark
Join Date: Feb 2006
Location: PA
Posts: 1,847
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guess pc's mh's and vho's will join hands with 8track and vinyl records in the land up in the sky 
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220g bare bottom softee tank
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07-06-2006, 09:52 PM
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#32
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It can be rebuilt.
Join Date: Jun 2002
Location: Pittsboro, NC
Posts: 19,158
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i am really curious about the penetrating power of LED's. not sure they can compete with MH's for deeper tanks.
if they are designed properly and are not overdriven then an LED will last a very, very long time. i hope that they are not overdriven like most of the silly moon light manufacturers. it does sound like it is well designed since it has many fans on it. having many resistors to keep the voltages constant if a bulb were to blow. one blown bulb is death to a badly designe LED array.
G~
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Think Tanker
Friends Don't Let Friends Use Refugiums!
Reef Knowledge Impaired
"J" crowd member.
My Build Thread
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07-06-2006, 10:35 PM
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#33
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Duper Mod !
Join Date: Mar 2005
Location: Illinois
Posts: 14,015
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I saw a display at the IMAC convention in Chicago they looked great and you couldn't tell which tank was MH and which was LED just from viewing the tanks I had to look up under the canopy to tell. They had 2 frags tanks side by side
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Kelli
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07-28-2006, 12:34 AM
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#34
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Little Fishy
Join Date: Jun 2006
Location: Chicago burbs
Posts: 89
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<<< if they are designed properly and are not overdriven then an LED will last a very, very long time. >>>
True, but like any other lighting now commonly used in reef tanks the LEDs will dim and degrade and will need to be replaced way before the 'bulb life' claimed by the manufacturer I suspect.
This is definately very exciting technology IMO, but I would guess LED lighting is still about 3-5 yrs. away from being an affordable mainstream product in the reefing hobby.
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Florida Live Rock Addict.
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07-28-2006, 12:55 AM
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#35
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Professor Chaos
Join Date: Apr 2005
Location: Arkham Asylum
Posts: 9,749
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Well someone must like them because they keep selling out.
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I mix twinkies and ding dongs all the time, in Europe they call it a Dinky -- Homer Simpson
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07-28-2006, 06:56 PM
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#36
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senior member
Join Date: Jan 2000
Location: Walnut Grove, SC, USA
Posts: 13,594
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Quote:
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Originally Posted by Twitterbait
Well someone must like them because they keep selling out.
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hEH!
Good concet, LED arrays, buit properly with a good design, should last quite a while with little degredation of color or intensity. I have to say that the price here is absolutely outrageous, especially considering the actual cost of the raw materials. Even with a custom driver ap and programming, this is a bit more than unreasonable.
Ideally, these should be programmable with a old 286 to do just abo9ut anything, so if the output is as claimed, especially at the rate of power consumption, then this may be the wave of the future.
I think the best one would be on linked to an array of photoelectrics on the roof, letting the power output of the photovoltaics directly drive the output of the LEDs...  then you'd do the LED's without using an inverter to make low voltage DC current from the AC 110v mains, rather, you could control the direct output of the photovoltaics.
Where is junkzoo???
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Tom <"))))>(
(TDWyatt)
Wise men speak because they have something to say; fools, because they have to say something. -Plato
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07-28-2006, 07:10 PM
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#37
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Little Fishy
Join Date: Jul 2006
Location: SF Bay Area, CA
Posts: 430
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this idea looks /really/ cool. I like the idea of having uber control over the lighting environment.. with real gradual sunrise/sunset and even cloud cover options!
" Cloud Cover
% decrease from Daylight Full Brightness 0
Frequency between Clouds
ersonname>Len ersonname>gth of Cloud cover"
that's too cool for school. It's a bit pricy, yes, but not out of the reach of a lot of peeps.. I am sure it will come down in price when the volume of units being sold increases and when others come out with competing LED products. But that amazing gradual lighting control is the best I have seen in one unit which can create a very life-like lighting env for the reef. pretty snazzy!
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07-28-2006, 08:29 PM
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#38
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Little Fishy
Join Date: Jun 2006
Location: Ellijay Ga
Posts: 395
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What i have been reading on is that the one watt LED has a life span of about 100,000 hours. the 2-3 watt has a life span of about 50,000 to 60,000 hours. and if i am understanding this correct the light output we need is from the 5 watt LED and that has a life span of about 5000 hours that is just a little over a year depending on your photo period :shrug:
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07-28-2006, 10:17 PM
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#39
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Big Fishy
Join Date: May 2006
Location: Lantana Florida
Posts: 827
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Great Thread! I love the Idea. Any thing to help reduce the power bill and the cooling of the tank. As for the prices will thats what you pay for new toys the price will come down over time.
Fred
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07-29-2006, 03:01 AM
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#40
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Professor Chaos
Join Date: Apr 2005
Location: Arkham Asylum
Posts: 9,749
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actually these don't use the 5w LED. they currently only use the 3w. these also have a lense on each LED group to help with intensity and focusing the light on the tank.
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I mix twinkies and ding dongs all the time, in Europe they call it a Dinky -- Homer Simpson
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08-30-2006, 05:50 PM
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#41
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Nucular Hermit
Join Date: May 2004
Location: Takoma Pk, MD
Posts: 2,172
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So has anybody gotten one? Who's gonna be our guiney pig?
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Mike S.
65g acrylic tank with 520W PC
Basement Sump w/ EuroReef CS6-1
My TRT Blog
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10-23-2006, 02:53 PM
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#42
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Got Crabs?
Join Date: Oct 2004
Location: Woodbury, MN
Posts: 5,526
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Actually the price on these is not really all that bad and there is no real gouging going on. I have been looking at the viability of doing a DIY version on my aquapod for heat reasons alone and figured that the DIY route would be much more cost efficient. To give you a idea the 3w luxeon star led's that they use are $6.90 each and the lenses are about $8.40. Now you need 25 (per 24") of each of these so between the led's and the lenses you are at $382.50. This is before you add in the heatsinks, fans, resistors and power supplys. It may seem like intial price inflation but it really isn't when you consider R&D, advertising and other overhead costs. Most LED's are relativelly inexpensive but the luxeon 3 from phillips that PFO is using is pretty spends and then the lenses on top of it. Intial reports have been good so far and it is as advertised. In order for the price of these fixturesto come down, the led's and the lenses themselves will have to come down. That is the bulk of the cost in the fixture. Long term in about three years it would have equaled the cost of the normal halide route and then start paying for itself. IMO these are the future in lighting as far as aquaria goes.
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10-23-2006, 04:32 PM
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#43
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Professor Chaos
Join Date: Apr 2005
Location: Arkham Asylum
Posts: 9,749
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I am inclined to agree. Plus buying from PFO you have some form of a gaurentee at least.
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I mix twinkies and ding dongs all the time, in Europe they call it a Dinky -- Homer Simpson
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10-23-2006, 04:38 PM
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#44
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Cabana Boy
Join Date: Sep 2005
Location: Miami, Fl
Posts: 2,070
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I would imagine that these wouldnt work for a tank with a canopy or am I incorrect?
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10-23-2006, 04:41 PM
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#45
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Professor Chaos
Join Date: Apr 2005
Location: Arkham Asylum
Posts: 9,749
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should work as long as they fit.
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I mix twinkies and ding dongs all the time, in Europe they call it a Dinky -- Homer Simpson
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