the CSL fixture is 2 x 40 watts plus moonlight, i bought mine from ---- for 84.99 on a buy it now.
This light is awesome for a 10 gallon! i have all sorts of coral thriving in it : frogspawn, torch, hammer, alveopora, brain, gonapora(red), finger leathers, various shrooms, zoo's and ricordea, even trying my luck with a maxima clam.
If you have good access to this light , i highly recommend it, its also very nice to watch after lights out with the 1 watt moonlight.
Kevin