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gptkbp:instanceOf
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Gas-discharge lamp
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gptkbp:advantage
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Energy efficient
Long life
Poor color rendering
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gptkbp:alternativeTo
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gptkb:Metal_halide_lamp
gptkb:LED
Fluorescent lamp
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gptkbp:contains
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gptkb:Discharge_tube
gptkb:Noble_gas
gptkb:Argon
gptkb:Neon
Sodium
Electrodes
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gptkbp:emits
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Light
Yellow-orange light
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gptkbp:enveloped
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gptkb:glass
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gptkbp:environmentalImpact
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Contains sodium
Contains toxic materials
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gptkbp:hasColorRenderingIndex
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Low
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gptkbp:hasColorTemperature
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1800K (LPS)
2100K (HPS)
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gptkbp:hasEfficiency
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High luminous efficacy
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gptkbp:hasIgnitionMethod
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High voltage pulse
Starter circuit
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gptkbp:hasOperatingPressure
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High (HPS)
Low (LPS)
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gptkbp:hasOperatingVoltage
|
High
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gptkbp:hasStartTime
|
Several minutes
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gptkbp:hasType
|
gptkb:High-pressure_sodium_lamp
gptkb:Low-pressure_sodium_lamp
|
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gptkbp:hasWarmUpTime
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Several minutes
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https://www.w3.org/2000/01/rdf-schema#label
|
Sodium Vapor Lamp
|
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gptkbp:inventedBy
|
1930s
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gptkbp:lifespan
|
Long
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gptkbp:operates
|
Electric discharge
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gptkbp:operatesIn
|
High temperature
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gptkbp:replacedBy
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gptkb:LED
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gptkbp:requires
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gptkb:Ballast
|
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gptkbp:shape
|
Tube
Bulb
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gptkbp:spectrumOfActivity
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Broader (HPS)
Narrow (LPS)
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gptkbp:usedFor
|
Street lighting
Industrial lighting
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gptkbp:usedIn
|
Security lighting
Road lighting
Tunnel lighting
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gptkbp:uses
|
Sodium vapor
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gptkbp:bfsParent
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gptkb:Street_Light
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gptkbp:bfsLayer
|
7
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