It might be and it might be not. Main question is-can you have electrical box so close to the wall? I'd ask a certified electrician..Even though the center of the sconce then at 4,5 I guess (1,5 from the wall plus 6 divided by two, right?)..might be okay but I'd still ask. They also need to be able to have 2 by 4 there to attach this box..if it's not a lot of inches to play with, it might be problematic, because what if they have to shift it an inch? If you already went through all this talk and electricians can do it, then it turns to be purely aesthetic question. How heavy is the mirror frame? low profile, high profile? 6' sconces-do they look tall and slim, or not? what is their projection? 1,5 inch will be hard to pull off.. what you can do maybe if you prefer lights from the side (which I agree, are more flattering..what about pendants coming from the ceiling?...Come with their own set of problems, but it's another possibility. not exactly overhead since they hang lower..

I suggested just splitting the distance and smack dab in the middle between wall and mirror, ( 8" ) BTW....... watch the specs for required box as many need a smaller one, and these should be NARROW and un bulky looking in any scenario.

If I were to have the sconces cut through the mirror, what trades person does this type of work? I have a 4 inch back splash from the counter, how far above the back splash is the mirror placed? Or, is it placed just on top of the back splash? Since the wall will be wallpapered is it best to bring the mirror frame up to the ceiling? This makes for a very elongated look. I have an 8ft ceiling, if I did not bring the mirror all the way up to the ceiling, the wall paper would show from top of mirror to the ceiling, would that give a choppy look? Thanks very much for your help.

They make neutral light Edison bulbs. Look on amazon for 4000k LED bulbs if you decide to go with these sconces. But since it’s a clear shade you wouldn’t want the bulb any brighter than 40 watt. Like you said it’s right in your face. Task lighting does not need to be so bright. The other good thing about these bulbs is that the lights they emit is so clean and fresh. It’s perfect for a bathroom and applying makeup. The light is perfectly natural, not yellow like a traditional Edison or commercial like daylight bulbs. To answer your original question... 9” does seem rather deep, but not ridiculously so. If they’re centered on either side of your 32” mirror over your 48 inch vanity they would be spaced somewhere around 40-42” apart? Though the light will be shining at eye level the lights themselves will be comfortably off to the side. Now if you’re expecting multiple people to be sharing that mirror I might opt for something with a little less depth. Ultimately you have to live with it, so there’s no real rigth or wrong answer, just whatever functions best for you and speaks to your asthetic preferences. I think it could look great and function well with certain considerations taken.