We dont have any data on the Par from Reef Brite - for that matter try and find data on the PAR from any manufacturer for just about any light, its just not available.
We do have a spectral plot of each light in the Reef Brite pamphlets though.
As for keeping SPS, there are several people trying exclusively Reef Brites for this so time will tell.
We have a frag tank here that is 12" wide, 6" tall, and 48" long and are running a single Reef Brite Blue LED strip on it for about a month now. The LPS look just amazing! The acans in this tank are just an insane color and we have some of the orange torch that looks like it should melt through the tank because its radio active or something. There are a few SPS in this tank and the results are varying. The Aussie fire engine monti (green base wire red polyps) is growing very quickly and in the last month has encrusted over 1/2". We have a crazy superman monti in the tank with an awsome blue base and a metallic red poly which is doing ok, but not amazing. And we have one of the indo superman monti with the blue base but the rusty red polyps and this piece isnt doing as well. The base is decent in color but one of the pieces is starting to lighten up in color and not extending polyps very often. But lets also not forget that this tank is running EXCLUSIVELY the Reef Brite Blue LED's. Adding a 50/50 or a daylight might change the results entirely but at the moment we are testing out the coloration that you can achieve under just the blue LED's.
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