High-pressure sodium (HPS) lamps are ideal for parking lots and large outdoor areas because they offer long service life, energy efficiency, and good visibility, even in adverse weather. Their slightly yellowish hue is acceptable for general surveillance and area illumination.
A (Metal halide) has better color rendering but shorter life.
B (Low-pressure sodium) has poor color rendering.
C (Halogen) is less efficient and has a shorter lifespan.
[References:, PSP Study Guide – Outdoor Lighting Technologies, POA Manual – Lighting Types and Suitability, , ]
Contribute your Thoughts:
Chosen Answer:
This is a voting comment (?). You can switch to a simple comment. It is better to Upvote an existing comment if you don't have anything to add.
Submit