LED vs. High-Pressure Sodium Streetlights
Technology Connections · Explainer · 22 min · 2018 · YouTube title: The LED's Challenge to High Pressure Sodium
Why it's here
HN commenters point to it in lighting threads for its pros and cons of LED versus sodium lamps, though one calls it almost right.
What it covers
A Technology Connections video weighing LED streetlights against high pressure sodium lamps, covering efficiency, color, cost and light pollution. It is a follow-up to his earlier explanation of why street lights are orange.