The $50 sensor runs on two coin cell batteries so you don’t need a nearby power source for installation.

Don't stub your toes or be scared of walking downstairs in the dark ever again, thanks to this DIY-friendly light switch ...

Magnetic position sensors open the door to a range of applications from smart locks and laptops to smartphones and smart ...

A hidden sleep switch in the brain triggers a sharp tipping point about four minutes before standard sleep onset.

After reviewing bulbs from GE Lighting, Philips Hue, Cree, Lifx and more -- and checking the results from our excellent CNET labs -- I’m ready to share my top picks for floodlight bulbs that can do it ...