new led lights
- Thread starter fishome25
- Start date
Matrajeous
Member
thank you so very much for the information I greatly appreciate it
cdamiano
I like Fuzzy Sticks
Tom - The documentation in the link you provided says that the units are 21 cm = 8.26" front to back. My understanding, based on the information provided by Wingo in the LIRA meeting, is that the light provided from the LED's is very focused and that as you move outwards from the focal point there is a significant degradation in the intensity of the light. Based on this and the fact that these fixtures are only 8.26" front to back, I was wondering how the coverage is working out on your tank given that your tank is 24" front to back. Are you using some other type of supplemental lighting such as T5's in the front and back of the fixture?
James983
Active member
On the same note. Wouldn't you need at least one more fixture on a 72" tank?
One other question. Can these lights be controlled with something like a Reefkeeper controller?
greggnyce
New member
I hear what you are saying, but do people need light intensity in the front 6" of a tank or the back 3 or 4"? For instance rock work is usually at least six inches or more from the front glass and you also leave room behind the rock work for additional flow. So, you really do not need the light to be intense over the full 24" width of the tank. I would judge it by the width of your rock structure not the width of the tank, because you do not need intense light in the front of the tank because nothing is there except sand.
cdamiano
I like Fuzzy Sticks
I agree, you don't need to have as intense a light towards the very back or the very front of the tank. I was just curious since I keep a lot of LPS (Acans and Scoly, etc.) on the sand bed in the front of the tank and in some cases I have a few SPS lower in the tank towards the front. I'm not looking to buy one of these at this time, but I am very interested in learning more about the technology. The width of my tank is 24" and I think my rockwork is a bit more than 8" wide. I was a little surprised at the amount of dropoff in the PAR that was shown when moving away from the directed beam of the LED in the demonstration that Wingo did at the LIRA meeting.
greggnyce
New member
True, I did not think of that. I am gaining interest in the leds, mostly for electricity savings. I am tired of LIPA and their BS fuel surcharges, did the cost of fuel not decline by 50% last year, yet the fuel surcharge remained the same. Plus, with the cost of LED lighting coming down you can actually save money over Metal halide. whcih was not the case if you are spending 1500 on a solaris. I also feel that we are all people who love the environment and care about the state of the oceans, so the more effecient my tank the better I would feel, as I drive my SUV around Long Island.
A 180 is divided into 3 sections, I have it centered in the middle of one section. No there is no other light in front of or behind the light. I understand your concern with the focus angle. But remember what Wingo said. The coral on your sand will do just fine. Try to picture holding a string from the middle of my light to the front of my tank on the sand. That is actually a pretty small angle. And my corals are growing very fast in that very spot. Now, what Wingo is saying is the area around the top of edges of the tank are not getting good light.
Greg, I'm not in a huge rush. I'd like to get 10 units, to get the discount.
If there were no center braces, maybe. But with the center braces I wouldn't think 4 would work.
I don't have any experience with the controller so I can't comment.
cb747
Active member
Also does the unit have 2 plugs on it? Its an on/off im assuming but can the blues be turned on without the whites being turned on?
EDIT nevermind i answered my own question rereading thru this thread the answer is yes LOL I may be in for 4 of them. But you would have to do it soon before as Warren put it i spend my Christmas cash LOL
EDIT nevermind i answered my own question rereading thru this thread the answer is yes LOL I may be in for 4 of them. But you would have to do it soon before as Warren put it i spend my Christmas cash LOL
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onegreenray
Active member
warren how many would i need for the 40 breeder? 36" L * 18"w
onegreenray
Active member
one question tom are these the newer design of leds or the 20 year old design like windgo said? at the meeting?
pecan2phat
Active member
Ray,
I would say 4 if you were running a real reef tank, so not econmical. Or you could do 2 length wise and use 2 Stunner blue strips.
I would say 4 if you were running a real reef tank, so not econmical. Or you could do 2 length wise and use 2 Stunner blue strips.
onegreenray
Active member
would be cheaper to stick with the t5's
the new style has 2 plugs and 2 switches, I'll post a picture tonight.
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