8 Terms
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Lighting products
Industry: Lights & lighting
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Lighting products
Beam lumens
Lights & lighting; Lighting products
The total lumens present within the portion of the beam contained in the beam angle.
Beam spread (approximate)
Lights & lighting; Lighting products
For reflector type lamps. The total angle of the directed beam (in degrees horizontal or vertical) to where the intensity of the beam falls to 50% or 10% of the maximum candlepower value as ...
Bi-pin
Lights & lighting; Lighting products
Any base with two metal pins for electrical contact. This is the typical base for a fluorescent tube of 1 to 4 feet in length. It consists of 2 prong contacts which connect into the fixture. Medium ...
Black light
Lights & lighting; Lighting products
A popular term referring to a light source emitting mostly near UV (320 to 400 nm) and very little visible light.
Blackbody
Lights & lighting; Lighting products
A hot body with an incandescent black surface at a certain temperature used as a standard for comparison. Note that a black surface is the best radiator possible. A tungsten filament will emit ...
Blacktop
Lights & lighting; Lighting products
Whether or not the top of the miniature lamp has a blacktop coating. The coating is used to control unwanted brightness or glare.
Bollard
Lights & lighting; Lighting products
A short, thick post with a light at its top, used for grounds and outdoor walkway lighting.
