A common question that is often asked is in regards to the placement of a bathroom light fixture over a vanity mirror. As a general rule, you want to center the bath vanity light over the mirror. When choosing the bathroom fixture, you want the vanity fixture to be a few inches shorter in width than the bathroom vanity mirror. A common problem, is that some electrical outlets are not centered over a bathroom mirror. In this situation, most people decide to choose a vanity light fixture that has a large backplate. Many people choose to drill holes in the back-plate where it fits over the electrical box and do the wiring.
Placement of Bathroom Light Fixture Over a Vanity Mirror