This would depend on the room type and what it is usually used for. Generally, a living room or bedroom will only need 10 to 20 lumens per square foot. A bathroom or kitchen will usually require more light of 70 to 80 lumens per square foot.

There should be a light every 8 to 10 feet. Using either flush mount or semi-flush mount ceiling lights depending on the ceiling height. If you have a long hallway, you may want to install wall sconces for added light and beauty.

Most of us want to see a clear reflection in our bathroom mirrors so we can apply makeup properly, shave without cutting ourselves or simply brush our teeth correctly. To avoid shadows and to fully surround your face with flattering light, install a fixture at least 24” wide over the mirror plus two wall sconces (one on each side of the mirror) at least 28” apart and 60” above the floor. If you have a double sink vanity, use a light that is almost as wide as the mirror. The light should be mounted 78” from the floor and centered over the mirror.

Besides the vanity/mirror lighting, you will probably need an additional flush mount or semi-flush fixture or LED down lights with possible recess lighting in shower areas.

This depends on the height of your ceiling. Always keep in mind that the bottom of the light should be at least 7′ from the floor.

In the dining room, the dimensions of the room dictate the width (diameter) of the light. If that doesn’t appear to fit because of the size of your table, use half the table width for the light’s diameter. The bottom of the light should be no lower than 30″ above the tabletop.

Wall lights should be mounted approximately 66” above the bottom of the door and slightly above eye level.

Ceiling fans are designed to create the feeling of either a cooler room in the summer or a warmer one in the winter simply by circulating the air. While the room temperature doesn’t change – the air movement of a fan provides a cooling effect in warmer months and recirculates warm air downward in cool months.