In addition to saving energy, motion-detector lights add the feeling of being watched when they illuminate a porch or yard. "They're a shock," says Cromwell, "and can stop a thief from crossing that line from the street to your home."
"The single best way to keep burglars at bay is to make your home appear difficult to break into. Thieves are just looking for an easy target."
—Dr. Paul Cromwell, Criminology Expert