AP9x! You may find the 700 cheaper, but the software/WiFi is a major headache. The AP9x allows you so much more in connecting other (Kessil) lights, from “x” version to older versions via 0-10v port. I used to run two AP700’s, but flipped them out for 360x’s and with the spectral controller and it’s been smooth sailing. Plus, there are a bunch of upgrades to the AP9x over the 700.