Why American Cars Had Standardized Sealed-Beam Headlights
Technology Connections · Explainer · 25 min · 2022 · YouTube title: Old car headlights were all the same — which was a fairly bright idea
Why it's here
Recommended as a clear explanation of why old headlights looked as they did, and as a case study in mandating requirements versus solutions.
What it covers
Technology Connections explains why American cars all had the same standardized sealed-beam headlights until 1957. It covers the regulations behind the design and the effect on night visibility.