Sump Frag Area SPS - which light to choose?

[Ostri]

I'm about to set up a sump frag area (for acros) that is about 10" x 10" and water level is about 8". I'm currently looking at AI Prime HD and Kessil A160. I'm not sure which one is more suitable for acros or neither are. I currently run T5 on my DT and would love to use T5 but for such a small area I can only use LED. But I would like the PAR to be around 200 - 250 since most of my corals do really well at this range. I have used Kessil before. The light was alright on average corals and seems to blend very well. I heard that AI Prime may have disco effect specially when the light is about 5 - 6 inches above water.

Thanks!