I can't say for sure about the marine and reef light because they don't list the manufacturer's part number. But you can always be certain with amazon. They list the part number as "Item model number: 05618". That matches what's on the Coralife website (click T5 Dual, then View Products and Specifications, and you'll see the matching part number): http://www.coralifeproducts.com/prod...ight-fixtures/
The specs on the one being offered by marine and reef are the same so I think they just have a different box pictured.
Edited: Confirmed, it's the same thing. The box was just changed. When you look at the high res pic on the coralife website, it has the pic that marine and reef is using, but the part number is still the same. You can even see that in the url of the pic: http://www.coralifeproducts.com/File...Size/05618.jpg
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