I don't think that is anywhere near the number of 1 watt LEDs it will take to grow coral, except in a very small nano reef. My recommendation is for 10-15x that number for a tank that is 24" deep, but it depends on you total gallonage and coverage you want. I have seen these lights on Nano tanks and don't think they are sufficient for even a 14 gallon tank.
This is why LED
gets a bad rap sometimes, it takes total wattage to do the trick. 8-15 watts of LED
is not enough except for a very little tank. Again, I would use at least 2 watts of LED
per gallon, mixed 1/3 actinic blue and 2/3 bright white. The more depth, the better the reflector and/or more LEDs it takes.