How well would something like these http://www.environmentallights.com/s...Path=1002_2010 work for plants? They are 7,500K, but do they have a full enough spectrum?
My best guess would be no, without seeing the specs. Most home improvement fixtures are not real compatible to the hobby without some modification, different bulbs. Since may LED's are a closed unit changing out the bulbs, even if you can find some, would be an adventure.
I would agree that it would be a long shot for it to be enough to grow plants with but hey, who knows.
If they give off enough light, the lumens is going to be the biggest problem, then maybe. I would see if you can find a local retailer that would be willing to test them for the amount of lumens you get at the standard height of a normal aquarium. If it comes close then maybe.
this might help
Am I failing to see anything in that article about LED"s. Maybe I need to change the perscription on the old bifocals here. It does do a good job of explaing the different types of fluorescents, the T8's, T5's, ect.
The larger of the two on that site claims to be 546 lumens. I was thinking of 4 of them across the top of a 55gallon.
Again, it must be said that intensity(lumens) alone is not always the best choice. You also need to look at the spectrum of light the lamp gives off. If you decide to go ahead and purchase these lights, I hope that they do the job. They should be very efficient as LED's are a very efficient light source. But as far as promoting plant growth, I still have my reservations. I would have to see the complete technical data sheet for the lamps.
one day i think we will all be using led lights but today isnt the day. they are pricey still and they are set up for what we need for now.
if you have the extra money buy it and test it.
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