9 Terms
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Lighting products
Industry: Lights & lighting
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Lighting products
Filament
Lights & lighting; Lighting products
Metal tungsten wire heated by the passage of electrical current, used to emit light in incandescent lamps. In fluorescent lamps the filament is coated with emission mix and emits electrons when ...
Filament design
Lights & lighting; Lighting products
Filaments are designated by a letter combination in which C is a coiled wire filament, CC is a coiled wire that is itself wound into a larger coil, and SR is a straight ribbon filament. Numbers ...
Filament voltage
Lights & lighting; Lighting products
Filaments are designed to get to operating temperature when an appropriate voltage is applied, e.g. 120 volts or 12 volts in the case of incandescent lamps or MR16 lamps. In certain fluorescent lamps ...
Fixture requirements
Lights & lighting; Lighting products
Describes fixture requirements for HID lamps. O = Open or Enclosed Fixtures; E = Enclosed Fixtures Only; S = Lamps operated in a vertical position (Base Up or Down) ±15º, can be used in an open ...
Flicker
Lights & lighting; Lighting products
The periodic variation in light level caused by AC operation that can lead to strobe effects.
Flood
Lights & lighting; Lighting products
Used to refer to the beam pattern of a reflector lamp, which disperses the light over a wide beam angle, typically 20 degrees or more. ("Flood" as opposed to "spot")
Floodlight
Lights & lighting; Lighting products
A luminaire used to light a scene or object to a level much brighter than its surroundings. Usually floodlights can be aimed at the object or area of interest.
