Thank you for responding. :). My mirrors are the full length of all the sides. I've been researching other comments of sconce placements in bathrooms. One was to have the lights centered 36 to 40 inches above the sink but our layout doesn't allow me to do that, so my next thought was to bring the one side in 10-3/4" which is about center of the extra room next to the sink, but there is a pipe behind the wall in that spot. So I had to leave them the way they are. When it's finished, I'll post a pick to give others an idea of what the off center looks like. Hopefully better than than the picture in my mind. Lol. Thx again for your advice.

I don't understand "the full length of all the sides" but I guess you mean it will be continuous mirror from wall to wall? If so, I think I'd go back to a single light overhead and centered to sink, and drill it through the mirror. If it's not too late. Off-centered will be... noticeable.

Have you considered one 3 globe fixture centered over the mirror on each side. Just have your electrician move the box and patch the holes.

It is too late. I wish I would have submitted this question a long time ago. Didn't have to be as much stress on me to try and get it right. This project should be done the first week of sept. I'll post a pic. Thanks for your help.

No worries. I'm sure it is gorgeous. Please post photos when you're finished.