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Lighting products
Industry: Lights & lighting
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Lighting products
Watts
Lights & lighting; Lighting products
A unit of electrical power. Lamps are rated in watts to indicate the rate at which they consume energy. (See KILOWATT HOUR).
Wavelength
Lights & lighting; Lighting products
The distance between two neighbouring crests of a travelling wave. The wavelength of light is between 400 and 700 nanometers.
Work plane
Lights & lighting; Lighting products
Plane at which work is done and at which illumination is specified and measured; unless otherwise indicated, it is assumed to be a horizontal plane 30 inches above the floor (table-top height) having ...
Working distance (typical)
Lights & lighting; Lighting products
For Multi-Mirror® and other reflector Quartzline® lamps and MARC™ Projection lamps, the Working Distance shown is the distance from the front surface of the reflector rim to the film plane, in the ...
Alternating current (AC)
Lights & lighting; Lighting products
Current which flows in one direction and then the other, alternately.
Accent lighting
Lights & lighting; Lighting products
Directional lighting to emphasise a particular object or draw attention to a display item.
Adaptation
Lights & lighting; Lighting products
The process by which the human eye adjusts to a change in light level.
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