You can install motion sensor lights anywhere, but if you want them to provide security and not simply illuminate your path in the dark, place them high enough to be ...

so you can get it with or without a built-in motion sensor or dimmer, and there's even a model for homes without a neutral wire. A smart light switch looks and acts like any traditional light ...

We don’t yet know whether Hue is looking at Ambient Sensing specifically, but as Hueblog points out, there’s long been chatter that Hue is interested in turning its lights into motion sensors.

Sensify is a new technology that can turn Zigbee switches, bulbs, and plugs into sensors with a firmware update. This could be how Philips Hue will bring ambient sensing to its smart lights.