Maybe I missed it but I didn't notice anyone who actually runs the xho kits. I run them on Radion xr 15s and love them. They really make things pop and not too overpowering. I only run 2 xr15s over a reefer 625xxl. With the reefbrites I only need 2 over a 5ft. tank. Mixed with plenty of sps and meat corals.