A small light fixture recessed into the ceiling that normally concentrates the light in a downward direction.
Recessed Fixture:
A light fixture mount into the ceiling
Recessed Downlight:
It is a small light fixture recessed into the ceiling, which usually concentrates the light in a downward direction.
Reflector Lamp:
An incandescent, compact fluorescent and HID lamp with a built-in reflecting surface. Incandescent or HID versions are made up of a single piece of blow-molded soft or hard glass.
Rapid Start:
A fluorescent system that does not need starters and takes 1 to 3 seconds to emit light. The ballast preheats the electrodes within the fluorescent lamp and then initiates the arc without a starter and the application of high voltage.
Rated Lumen:
Also referred to as rated light output from its lamp in lumens. Lumen refers to a unit measurement of the rate at which the lamp produces light. A lamp's light output rating express the total amount of light emitted in all directions per unit time.
