But doesnt everything in the US run off of 120 volts and about 60HZ? I could have sworn that is the case. I plugged my halides into a couple of timers and they turned on for about 30 minutes then shut off. Then I waited a bit and rotated the timers till they shut on again. They flickered then went off. So I plugged them directly into the surge protectors and they were fine. I read in small print on the timer instructions that they can only handle 115 volts. I dont get that one at all.