Can I use a simple on/off switch?
if they were originally incandecants then it'll be a 120V switch, has to be commercial grade though so the 50 cent cheapo at HD isn't going to work.
some of downtown toronto is 277V, mostly the older buildings.Also alot of buildings in alberta are u.s voltage too. I'm sure at some point in trade school they told us why we use 347/600 instead of 277/480 but that's way too far back to remember.
I can't see it just beeing a simple fact of being able to downsize wire a bit and put more lights on a circuit. Voltage drop improves as well.
Sarcasm is my friend
I'm here to learn too, i do mostly commercial/industrial/new construction and this place is a great way to pick up tips on residential from some good electrical minds. Excuse the spelling, my phone has a mind of it's own.