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 ...

Confused between A19 and E26 light bulbs? Learn what these numbers mean, how are they different and similar, and how to pick ...

Which LED light bulbs are best? Finding the best LED light bulbs for your house, office or otherwise can be more complicated than it seems. It’s easy enough to pick out a random A19 light bulb, but ...

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 ...