Found these in a local home improvement store
there's 6 LEDs at 15.2 watts total at 5000k and 80º optics, the store clerk told me one unit would be enough to light a 24x24 area. At 15.2 watts with 6 LEDs i think that would make it a little over 2 watts per LED. Would this be enough for my tank? I was considering getting 2.