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Car headlights existed before light bulbs, so how did they work

As we grapple with the demise of laser headlights in the US, as reported on August 18, 2025, and the compatibility issues of ...

Before The Light Bulb, Cars Still Had Headlights. Here's How They Worked

People needed to drive in the dark prior to light bulbs being standard vehicle equipment, so automakers installed headlights on cars the old-fashioned way.