Recessed Lighting
A recessed light or downlight also sometimes called "can lights" [for canister lights] is a light fixture that is installed into a hollow opening in a ceiling. When it is installed it looks like you have light shining out of a hole in the ceiling, concentrating the light in a downward direction like a broad floodlight or narrow spotlight.
There are two parts to recessed lights, the trim and housing. The trim is the visible portion of the light, like molding on a window or door. It is the insert that is seen when looking up into the fixture, and also includes the thin lining around the edge of the light. The housing is the fixture itself that is installed inside the ceiling and contains the lamp holder. |