To give you a visual, this is 9 ft ceiling, 72” vanity. Mirrors are 34” and lighting box at about 85” high. You’ll want to ensure good lighting with less shadows.

What size is the room? Two of those light fixtures across from each other seems like a lot of look - 10 globes in one space, sounds like a Hollywood dressing room. Do you have any inspiration pics that show this?

Since the mirrors will be more than 7 ft apart, I'd reckon installing one light fixture above each is right. However, 2 X 5 bulbs might be overkill... Perhaps change them for 3-bulbs ones?

Wow! I never realized I could post questions like this and get such helpful, fast feedback. I should have done that a couple months ago since the consensus seems to be 5 lights is too much and I'm unable to return/exchange the fixture. In answer to the room size question, it's about 7x12. I've read that sconces provide nice lighting, but the electrical has been completed for overhead.

In our current house the bottom of the light bulb is about 86", but I see fewer shadows when I stand on something and get closer to the light bulbs. Is 85" standard or what is the downside in lowering them, especially for short people. Thanks everyone!

There isn't a rule for light height since wall heights vary, but placement will control the quality of light output. I don't think you mention if these lights are doing all the work for the room or if there are can lights above, or if the vanities are in an alcove vs open in the room. You could lower lights to 80" but you mention you don't want all the extra empty wall space above. I've seen photos where folks take the mirror higher than the lights and lights are mounted through the mirror. Might be easier if you draw it out to see where you want light placement because mirror size will play into it. For example if vanity height is 36" including countertop, will there be a backsplash included to factor in? If there's a 4" backsplash, and you want light at 80" that still leaves you about 40" to work with for mirror placement. Or you could have mirror custom cut to sit at top of backsplash and go to height that works with light placement. The best lighting is closest to your face, so without sconces, you could look to buy a lighted make-up mirror to get the closer up view when you need it.

Post the floor plan for the house! The one that shows the bath plan within the house

Show the vanity style......both of them. You should have a separate drawing for that bath, and its cabinetry, if this is a "custom" house.

Mirrors, are dictated by sink position, and by ceiling height and in combination with ambient lighting in the space. No bath, begins with the lighting OR the mirrors: )

It sounds like you are unwilling to have anything rewired or replaced, even if you agree it is necessary for better function. I am guessing you are at that stage where you are exhausted by the process and just want it to be over.