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The LED's Challenge to High Pressure Sodium

Technology Connections · explainer · Watch on YouTube

Everyday physics & science demosPower grid, heating & buildingsRenewables, batteries & storage

What it is

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.

Why Hacker News recommends it

HN commenters point to it in lighting threads for its pros and cons of LED versus sodium lamps, though one calls it almost right.

  • 2 people recommended it
  • 2 different months
  • 0 strong recommendations
  • first 2018, last 2021

What HN commenters said

  1. “most if his videos are pretty interesting to explore”

    Interesting LED vs sodium-vapor streetlight coverage

    news_to_me, 2018-08 · Recommendation · in “Energy Saved, Sleep Lost: The Unintended Consequences of LED Lighting”

  2. “Here's a quite good video about the pros and cons of LED vs high/low-pressure sodium street lamps”

    Pros and cons of LED vs sodium street lamps

    kibwen, 2020-08 · Recommendation · in “Germany plans to dim lights at night to save insects”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: led, high pressure sodium, street lights, light pollution, color temperature

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