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 ...

Smart light bulbs are a low-cost way to try smart home technology, and they often have fun features too. Here's you should know before buying.

Early automobiles didn’t use light bulbs, instead, they relied on acetylene gas lamps and oil-fueled lanterns before electric ...

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 ...

Able to replace standard halogens and metal-halide bulbs up to 66 W, the PAR30-15W-XHW-120AMD halogen-white (2,700K to 2,800K) and PAR30-15W-XIW-120AMD warm-white (3,200K) PAR30-style LED bulbs work ...

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