HALO MS180 180 Degree Replacement Motion Security Floodlight Sensor. Motion sensor turns lights ON automatically when motion is detected and OFF after a pre-selected time delay (4 or 12 minutes). Integral photo cell design prevents lights from turning ON with motion during daylight hours (auto modes). Power outage protection: saves energy by automatically resetting at dawn if lights are triggered by power interruption. Motion sensor detects motion 180° up to 70 ft. Maximum load of 300 Watts