Statements (32)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
lighting technology
|
| gptkbp:alsoKnownAs |
gptkb:HPS
|
| gptkbp:colorRenderingIndex |
low
|
| gptkbp:commonWattages |
100W
150W 35W 250W 70W 400W 1000W |
| gptkbp:contains |
gptkb:xenon
mercury sodium |
| gptkbp:effect |
up to 150 lumens per watt
|
| gptkbp:emits |
yellow-orange light
|
| gptkbp:environmentalImpact |
contains mercury
|
| https://www.w3.org/2000/01/rdf-schema#label |
High Pressure Sodium
|
| gptkbp:inventedBy |
gptkb:General_Electric
1960s |
| gptkbp:lifespan |
12,000 to 24,000 hours
|
| gptkbp:operatesIn |
high temperature
high pressure |
| gptkbp:phasedOutDueTo |
energy efficiency regulations
|
| gptkbp:phasedOutIn |
many countries
|
| gptkbp:replacedBy |
LED lighting
|
| gptkbp:requires |
ballast
|
| gptkbp:spectrumOfActivity |
narrow
|
| gptkbp:usedFor |
street lighting
grow lights industrial lighting |
| gptkbp:bfsParent |
gptkb:HPS
|
| gptkbp:bfsLayer |
7
|