I’m something of a headlight nerd. In a previous life, I retrofitted HID projector headlamps onto my 2009 Honda Civic Si for better light output. I’m planning a similar project for my beater 2015 VW ...

In response to Robert Gerard's July 20 letter about lightbulbs, please check out LED bulbs. They are better than fluorescent bulbs: better light, no mercury and they don't get hot. The quality of ...

Light-emitting diodes are front and center for many of our digital experiences. Every modern phone and tablet you look at uses LEDs in its display. It’s worth knowing how these work. In short, LEDs ...

As we grapple with the demise of laser headlights in the US, as reported on August 18, 2025, and the compatibility issues of LED bulbs with daytime running light (DRL) functions in vehicles, it’s ...