Thanks for the advice.

OK, here's a new wrinkle. Everything is working fine now, temp outside is almost identical to last night, and we had no storms between them working yesterday afternoon and not working last night.

Does that point to anything specific? There are 16 fixtures in the shed, 8 in one room and 8 in another on separate breakers. One group wasn't affected last night.

I like the idea of moving to LED, any electricians here willing to do a job just outside of Castle Rock? I'd like to swap all of them over to LED.