Yup, and unless its a FO tank, its not worth the trouble/can't be effectively done
I did a 18" x 18" panel of 100 white LEDs which at night looked quite bright in the tank. Unfortunately when I have 4 55w PC bulbs on and then flipped it on you could hardly tell you turned the LEDs on.
Now if you mean with moonlights, then definately works.
>...Anybody else out there know anything about LED lighting used in a reef tank application?
Most application in in moon lighting. For daytime application, LED is still not an economical method unless for nano setup. Nothing beats a MH at this point.
There are 1W and 3W led's which are extremely bright.. www.luxeon.com
Unfortunately, they are fairly expensive ($9-$15 each) and powering them is also fairly pricey if you use proper drivers.
I picked up a dozen of them on ebay for a couple $$ a piece to play with but I haven't had time to build a power supply for them. The nice thing is you have a great deal of control over their output so you can dim up/down along with shutting off portions of them to simulate cloud cover/motion...
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