Posted by Albert Barajas for Lighting Fixtures at Wednesday, January 18 2017 10:29:16
Flush Lights: Mostly available in round shapes, the lights are fitted inside the rim, which can be of silver or gold or any other color. These lights can be conveniently used in kitchens as the area gets brightly lit up by these lights. Also available in square forms, these can be used in bedrooms as well. Semi-Flush Ceiling Lighting - Basically, a transition form between Single Glass Pendant Lights and Flush Ceiling Lights. They hand down from the ceiling slightly.
Typically, they project down from the ceiling and are usually the biggest lighting piece found in the kitchen. These fixtures can also be hung over a breakfast nook or a kitchen table. There are two types of ceiling fixture; flush-mount ceiling fixture with the glass or diffuser touching the ceiling and semi-flush ceiling fixtures where the bowl projecting from the ceiling such that it hangs a couple of inches away, with indirect light reflecting from the ceiling (think of it like an upside down umbrella).
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.