Did some experiments with the swamp cooler. I ran it off a seperate power line than the AC and it worked fine, no resetting. Then I ran it off the same line, thinking the AC might be drawing down the voltage enough to mess it up, that isn't happening. Then I put it in close proximity to the ballasts to see if they were causing the problem, BINGO! EMI is causing the reset. With the open hoods it won't cool enough anyway so I think I'll sell it to help pay for some new CMH bulbs that are a better spectrum, current ones are 3K.