From bedrooms to basements, this motion sensor switch is perfect for anywhere you might want to worry (or waste electricity) less. A conveniently modern light switch, it features combination control that allows you to manually turn lights on when entering a room, and then automatically turns the lights off for you when you leave. Use this device on its own to control a light or fixture from a single location one location, or combine with additional switches for controlling a single light source from multiple locations in 3 or 4-way applications.