The Motion Sensor utilizes passive infrared (PIR) technology to detect heat radiation of moving bodies. Upon detection, the connected lighting load will illuminate for a user-determined time period. An integrated daylight sensor (Photoelectric Cell) ensures operation and detection only at night. The extension kit provides versatility in aiming the unit. WAC Motion Sensor, 120 V AC, LED Lamp, 200 W Lamp, White Light, IP66 Enclosure, Surface Mounting, Die Cast Aluminum Housing Material, 180 deg Sensing, 5 s to 5 min Time Delay, 2.88 in H x 3.33 in W Dimensions