Podcasts > Kategorie: Wissen und Wissenschaft > Kanal: BrainStuff

Why are traffic lights being replaced with LEDs?

Kategorie: Wissen und Wissenschaft
Kanal: BrainStuff
Datum: 18. März 2015, 19:03
Stufe: B1-B2 (Mittelstufe)

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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://news.iheart.com/podcast-advertisers