LED light question

[Bugsy]

I have a 2.5 gal pico with lighting of 18 watts PC I am just starting up again after taking a break. Only keeping zoas, gsp and maybe a candy cane coral but the zoas and gsp for sure.

I was wanting to know about the new Dymax Robo LED light 28 led's on this fixture if that would be strong enough for this little tank and the corals I want to keep?

Depth of this tank is 7.5 inches.