You're just about to settle in for the night with a tub of Ben and Jerry's and a DVR full of True Blood when you hear a crash in the driveway. You're so startled that you drop your light that does the work for you.
Types
Motion sensing lights are useful for a variety of purposes, and can be installed pretty much anywhere you'd like to have a view on potential intruders, be they human or animal. Some lights have a motion detecting range up to 150 feet, which is safe enough distance for you to be lighting timers that automatically shut off the lights after you've left a room, some motion lights can be customized to turn on and off whenever you want.