Is a Radion overkill for a 15 gal cube?

[Hawkingcolorado]

Still searching for the "perfect" light for my new cube...Kessil, nanobox, AI nano, AI Sol, Radion or,,,,? I want to keep SPS primarily...

 

[Darth Wader]

I think that its overkill. I have the AI Sol blue on my 30g and i dont even have it over 50%.
I would go with the AI Sol nano. Should get great coverage. Saw one over a elos nano and it looked amazing