Features:A simple PIR sensor switch that activates on when a body in motion enters the field of view with an on time hold of 10 seconds after motion has ceased.PIR (Passive InfraRed) sensor has an effective range of 16 feet and diminished sensing of a moving human body to 26 feet.The field of view of the PIR Dome Lens is 120 degrees nominal.Great for small 12 volt DC solar panel LED Lighting systems to conserve battery power; also well suited for occupancy LED lighting control and security LED Lighting systems.