I've been running both for a few years. I chose the AC cause I needed to install it myself. They aren't the best, especially the dehuey. The A/C will get the job done, but it sure won't cover 6K of HPS lighting that is unvented. Make sure you get a dehumidifier controller for the dehuey, and put it on a dedicated circuit. If the a/c is a newer model that can connect to an external thermostat, go ahead and pick that up, and mount it on the opposite side of the room that the a/c is on. Also, you're gonna need a dedicated circuit for the A/C. That was a hell of a deal.