Stage Lamps
Major Components
Base
Must have two contacts (hot and common) to create a circuit.
Base Types
Screw, Prefocus, Bipost, Bayonet
Base Sizes
Candelabra, Minature, Medium, Mogul
Filament
Material (tungsten) that resists heat, then glow when electricity is forced through the circuit.Filament Types
Coilied
Coiled Coil
Envelopes
Glass or synthetic quartz
Envelope Types
Frosted or Clear
Shapes: Tubular, Globular, Reflector,
Sizes: Number indicates 1/8" increments
Tungsten Halogen Lamps
Advantages
Longer lamp life
Smaller lamp housing
Higher color temperature
Disadvantages
Cost
Special handling requirements
World's Longest
Continuously Burning Light Bulb
Burning continuously since 1901!
Livermore, California
American National Standards Institute
(ANSI)
Arbitrary three letter code
Necessary to install proper lamp in each fixture
What to Do
When You Don't Have the ANSI Code
by Earl Lee Burnout
(courtesy of Scott Electric)
Provide as much information about the lamp as possible...
...and lamp suppliers should be able to identify the lamp you need!