LED light feedback

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Striike

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On going thread. I'll post more once I can gauge how they do over the long run.

Too early to gauge an opinion, other than they are pretty. My digital camera decided it want to die today, so I'm charging up my Video camera (it can take still shots). They won't be as good quality, but should be good enough to have a look. I'll get some pictures up today for you.

My specs:
75g tank
38g sump
2 clowns
1 yellow tang
1 strawberry goby
1 blue spotted goby
1 blue yellow tailed damsel
1 torch
1 frogspawn
many more corals to come once I am comfortable with what I have.

My thoughts so far. The light is a lot more intense than what I had before. My frogspawn is loving it, but I had to move my torch to the bottom of the tank, and reduce the lighting to 10 hours. It still hasn't expanded out like it used to, but color and consistency tell me its still healthy, just really closed up. I did a light acclimation, starting out with 4 hour white, 6 hour all, and worked up over the course of 2 weeks to 10 white, 12 all. Most of my rock has bleached, so I probably didn't acclimate gradually enough, which may explain my torch being so ticked off at me. I'm hoping with time the torch will acclimate enough so I can go back to 12 hours.
The light fixture itself is simple enough, 2 plugs in each, one for the white light, and one for the blue and royal blue. I also got a Reef Keeper Lite so not having a timer is not a problem for me. The plugs themselves are the same connection as a Computer power supply, so replacement of the cords, or even getting a longer/shorter one is very simple. Each fixture comes with 4 hanging brackets on the top of the fixture, and 4 cables to hang it. I didn't go that route myself, rather I just built a platform for them to rest on, which I'll show in my pictures.
I had to put my canopy back on, so there for had to mount my Sea-Swirls on the inside corner instead of over the edge. Add to the fact my overflow takes up the back 6 inches of my 18 inch tank. But the lights are low profile enough I was able to provide light to the entire tank with very little noticeable dark areas.
The lights put of negligible heat. My tank is smaller, only at 75g, but there is no temperature change between night and when the lights are all on. Each fixture has 3 fans blowing straight up. My canopy has 2 fans on the top, one blowing down, one up. I do have decent flow rate, ~30 times, so not sure if a tank with less flow would notice any difference. I will say touching the light after its been on a while isn't bad. The bottom where the light comes out gets a little warm, but the rest remains cool enough to handle.
I believe they are decent quality. I was actually clumsy enough to drop one from 4 feet high onto my hardwood floor. Everything still works as it should.
I have never owned MH lights, but after reading all the cons about them, I would never go MH, but would stick with these LED's, providing time convinces me they are viable for reef inhabitants to grow under. The ones I have are supposed to be equivalent to a strong 250w MH, so a deeper tank may run into some issues. These fixtures have 3w LED's under run to 2w each, or something like that, so there may be capability to clock these up to full and get more penetration.
 
Some Pictures

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This will have to be good enough for now, I'm frustrated with this forum page, I cannot edit any of my above posts. So I'll just take a step back, and try again later.
 
You might try a site like photobucket.com to upload pics, then link them (IMG tag) into the forum.

I've converted to LED's over my frag tank and am happy so far. It's only been a couple of months, though. The frag tank is 72x30x14t. I had (10) T5's (36") over it for a total of 390W. Now, I hav 144W of Cree 3W LED's over it. I've got them broken down into (4) 6"x8.5" heatsinks with (12) LED's on each heatsink. I'm running the dimmable ELN 60-48D drivers. (24) royal blue and (24) white. I haven't yet and most likely won't go 100% on the whites in this shallow a tank. I don't have a par meter for measurements, but to the eye, it is a lot more light. All of my corals have responded well and are slowly coloring to the LED's. With less than half the wattage and not bulb replacement, they should be paid for in less than a year.

My next endeavor is to convert my wife's 75. I plan to run (40) 3W Crees over it on (2) 12" heatsinks. That will give me a good test (and can hopefuly find a par meter). Just need a few drivers:).
 
Thanks for the update. I'm thinking about LEDs too. My light was badly damaged (still 2/3 working, but the 3rd fixture is toast) from the powersurge that we took with the tornado when the tree fell on the house and knocked out the power lines. I thought I had surge protectors, but they just looked like surge protectors and were actually just cord extenders. :-( Anyway, since insurance is helping pay for a new light......
 
I have been running LEDs for just over a year now on my 60 Cube. I ran 48 3w Crees 50/50 mix between royal blue and white, and felt like I was doing ok then lost some moni and started to not see much growth even with the xenia. A storm or salt caused some problems with the leds that I have not really gotten into but as a result I have gone back to MH and compact flo. And in just a short time am starting to see growth and healthier stock. That I can say is due to light since no other changes have occured. I think I am now going to focus on building a "triple threat light" set up with a MH, Cree LEDs and T5s. Not sure if I will ever go back to just LED's. It provides me if not the livestock a certain level of comfort. even if I do have to plug the chiller up.
 
I guess the uploads were too big. I still can't edit the posts, it just keeps working indefinitely. Susan, I can't advise which way you should go as I don't have any results yet, but I will say neither of my corals have died yet, lol. I like the LED's mostly because of the lack of heat transfer, but they make the tank look very pretty too. BTW, I didn't mention this before, but they are 14,000k.
 
Ok, I uploaded some pictures into my forum gallery. See if you can see them here. There are a couple before and after pictures, I didn't label them all, but I believe you can tell the difference. One big give away is before I didn't have the canopy on. I took it off simply because it was easier to feed and work on the tank. The canopy looks better, but logistically I don't like it as much.

My Gallery.
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

  • Yes!

    Votes: 32 45.7%
  • Not yet, but I have one that I want to buy in mind!

    Votes: 9 12.9%
  • No.

    Votes: 26 37.1%
  • Other (please explain).

    Votes: 3 4.3%

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