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Plastic? Sorry, just couldn't resist. :icon_bigg

There is a thread - for which I am remiss in not referencing - that Hoppy did that shows a bunch of PAR values for the various LED fixtures (as well as other lighting etc - it's an amazing read) where the bottom of the barrel LED was the Marineland Double-Bright. Some folks consider the Double-Bright a "fish only" light, and figure the Single Bright is even lower than that. Also, given the cost of the fixture, I wouldn't go out and actively purchase one. I've had a Double Bright myself, and it wasn't anything stellar. It's also quite outdated with the current technology out there now. If you just wanted the shimmer affect, and were coupling it with a 2nd plant growth light, that might be a good use.

Oh, to the OP - my understanding on your title is that you are referring to the "Marineland Single Bright" unit, and not a generic, bright, single LED. If it is the latter, my apologies, my response was clearly going on the Marineland unit.
 

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I breed angels in most of the 23 tanks I have. I use several single brights. They are cheap and easy to move from tank to tank as I need. But I also keep potted plants and dish gardens in just about every tank; even the barebottom tanks. The SB's do fine with the basic java, crypts and anubias. If you use the mounting legs they come with, the coverage isn't the best. I don't know what angle the optics are, but you need to raise them off the tank a bit to get better coverage. Absolutely not the brightest things you'll find, but they don't break the bank and may fit certain situations OK.
 
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