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 ...

A breakdown of what smart light bulbs do, how they work, and how to choose the right one Smart light bulbs are LED bulbs that can be controlled using a smartphone, tablet, or smart home automation ...

Confused between A19 and E26 light bulbs? Learn what these numbers mean, how are they different and similar, and how to pick the right one for your fixture.

LED lightbulbs have slashed the amount of energy we use to light our homes. New data illustrate just how much. Jon covers artificial intelligence. He previously led CNET's home energy and utilities ...