I would think it all depends on the animals you plan on keeping.
For instance my reef is a mixed reef with mostly leathers, lps, zoas, shroom, palys, clams, sps consist of caps & one other which I'm not sure what it is possibly a slimer.
My lighting consist of 3 XM 175 watt 10K MH & 2 VHO 1 super blue actinic & 1 white actinic.
All animals seem happy, and growing nicely, and I have less heat issues, and less energy consumption.