Smash
Senior Member
- Location
- Philadelphia suburbs, PA USA
Doing a warehouse with about 50 UFO lights replacing T5s This is an older building with a 3 phase delta high leg. The T5s didn’t seem to mind the high leg two phases were always 240V
I wasn’t taking any chances and arranged the breakers so no high leg would be used. Everything going fine then had one as you plug it in flicker a little then nothing. Checked voltage everything was fine. After a couple more I set up a bench power supply and as I was building them (twist lock plugs ) I would test them. Two would work fine then the 3rd nothing. I’ve now installed 22 fixtures and 6 would not fire. So far the ones that do work continue to work. But the random ones brand new same everything don’t work. I’m at a loss my best guess is an older possibly cheap driver likes a neutral better than a hot. Rewiring to 120V would be a time consuming pain in the ass. Anyone ever had this problem.
I wasn’t taking any chances and arranged the breakers so no high leg would be used. Everything going fine then had one as you plug it in flicker a little then nothing. Checked voltage everything was fine. After a couple more I set up a bench power supply and as I was building them (twist lock plugs ) I would test them. Two would work fine then the 3rd nothing. I’ve now installed 22 fixtures and 6 would not fire. So far the ones that do work continue to work. But the random ones brand new same everything don’t work. I’m at a loss my best guess is an older possibly cheap driver likes a neutral better than a hot. Rewiring to 120V would be a time consuming pain in the ass. Anyone ever had this problem.
