How headlights got brighter, whiter, and more blinding after dark
Summary
The article traces the evolution of automotive headlights from early oil/acetylene lamps to modern LED and matrix LED systems, explaining how brighter, whiter light improves forward visibility but increases glare for other road users. It covers regulatory changes, beam control technologies, and real-world drawbacks, including maintenance and calibration challenges, with data on nighttime crashes and the debate over adaptive headlights.