Published at Tuesday, October 31 2017 02:36:23 by Gladys Getz for Lighting Fixtures
An important property of light fixtures is the luminous efficacy or wall-plug efficiency, meaning the amount of usable light emanating from the fixture per used energy, usually measured in lumen per watt. A fixture using replaceable light sources can also have its efficiency quoted as the percentage of light passed from the "bulb" to the surroundings.
Lighting fixtures come in a wide variety of styles for various functions. The most important functions are as a holder for the light source, to provide directed light and to avoid visual glare. Some are very plain and functional, while some are pieces of art in themselves. Nearly any material can be used, so long as it can tolerate the excess heat and is in keeping with safety codes.
Dining Table: The pendant should be suspended about 30 to 36 inches above the table. This will allow for ample illumination while reducing glare at the same time. Bar or Raised Counter:: The bottom of your pendant light should float about 30 inches above the counter surface. For desks, bring the light in closer to the work surface by allowing your pendant lamp to float about 16 inches from the surface. However, this can change depending on the height of you and your family. Foyer: Illuminate your space without encroaching on head space by suspending your hanging lamp about seven feet from the floor.