Across the country, incandescent traffic lights are being replaced with LED arrays. Check out this podcast from HowStuffWorks to learn more about the advantages of LED traffic lights.
 Learn more about your ad-choices at https://www.iheartpodcastnetwork.com

Across the country, incandescent traffic lights are being replaced with LED arrays. Check out this podcast from HowStuffWorks to learn more about the advantages of LED traffic lights. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com

Why are traffic lights being replaced with LEDs?

Whether the topic is popcorn or particle physics, you can count on BrainStuff to explore -- and explain -- the everyday science in the world around us.

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Why are traffic lights being replaced with LEDs?

Why are traffic lights being replaced with LEDs?