I don't see why they wouldn't work. There are several different types of underwater LED's out there right now with several different looks/mounting styles. I'd like to see the spec's of these lights though, but their website is kind of bare. No details on the wattage of the LED's. Would also like to see the back of the units to see if they simply screw in, or if there is a different mounting system.
http://www.cannanlight.com/default.asp