The Smarthome Screw-in Motion Sensing Light Adapter can turn any light socket into a motion detecting one. You just remove your bulb, insert the adapter, and screw your bulb back into the adapter. The infrared sensor can be rotated 360 degrees, has a 15 foot range and the level of sensitivity can be set.
Having lights that go on or off when you enter or leave the room is a simple way to green up your home. You’ll never forget to turn the light off again. It’s also a great safety mechanism that can help scare away intruders (and scavenging animals!) from the outside of your home without wasting electricity by having a light on at all times. No need to fumble for a lightswitch when going into your closet, attic, or basement if you have a motion light installed. It’s simple and smart.
via coolest gadgets