Ok, now I see. Probably those bulbs are useless for keeping corals, sorry to say. The suggestion about ahsupply is great; that's exactly where i got my nano lighting and I kept clams, all sorts of SPS, etc, in there successfully. I used the 2X 36WP.C. set up on a standard 10 gallon tank. The ahsupply reflectors are very good and make a huge diffference. Good luck!