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Lighting products
Industry: Lights & lighting
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Lighting products
base or socket
Lights & lighting; Lighting products
The socket is the receptacle connected to the electrical supply; the base is the end of the lamp that fits into the socket. There are many types of bases used in lamps, screw bases being the most ...
base temperature (maximum)
Lights & lighting; Lighting products
The maximum operating temperature permitted for the base in Celsius. Fixture manufacturers need to ensure that these conditions are satisfied in their fixture.
bayonet
Lights & lighting; Lighting products
A style of bulb base which uses keyways instead of threads to connect the bulb to the fixture base. The bulb is locked in place by pushing it down and turning it clockwise.
beam angle
Lights & lighting; Lighting products
The angular dimension of the cone of light from reflectorized lamps (such as R and PAR types) encompassing the central part of the beam out to the angle where the intensity is 50% of maximum. The ...
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 ...
