This is a beautiful light that fits very well above my new recessed 15W by 26H recessed medicine cabinet. Likely, the inside depth would not be compatible with a surface-mounted medicine cabinet.
Three 60w-equivalent LEDs gives me plenty of task lighting to apply my makeup.  I installed a dimmable wall switch for flexibility with ambience.  This is a very good light for smaller-sized bathrooms.  It provides enough light in my entire room that a ceiling light isn't necessary.