Choosing the right bathroom mirror depends on size and placement. A mirror...

https://wiki-global.win/index.php/Why_Do_People_Say_a_Mirror_Is_a_Lighting_Tool_First%3F

Choosing the right bathroom mirror depends on size and placement. A mirror about 70% to 80% the vanity width works well with sconces placed 60 to 66 inches from the floor for balanced lighting