Statements (25)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
lighthouse
gas discharge lamp |
| gptkbp:color_rendering_index |
low
|
| gptkbp:contains |
gptkb:xenon
mercury arc tube |
| gptkbp:emits |
yellow-orange light
|
| gptkbp:has_efficiency |
high luminous efficacy
|
| https://www.w3.org/2000/01/rdf-schema#label |
high-pressure sodium lamp
|
| gptkbp:inventedBy |
1960s
|
| gptkbp:lifespan |
long
|
| gptkbp:marketedAs |
gptkb:General_Electric
gptkb:Philips gptkb:Osram |
| gptkbp:operates |
high temperature
high pressure |
| gptkbp:produces |
monochromatic light
|
| gptkbp:replacedBy |
gptkb:LED
|
| gptkbp:requires |
ballast
|
| gptkbp:usedFor |
street lighting
industrial lighting |
| gptkbp:uses |
high pressure
sodium vapor |
| gptkbp:bfsParent |
gptkb:HID_lamp
|
| gptkbp:bfsLayer |
6
|