3 position switch: The
middle position is OFF. The left position is ON, used for testing and
emergencies. Sliding the switch to the right puts the CFA into automatic
mode - if the room is dark and motion is detected, the CFA will light
Light sensor: This
sensor determines the ambient level of lighting. If light is available
this sensor will inhibit the CFA from lighting up.
Motion Sensor: This
component detects motion. If the room is dark and there is motion in
front of the CFA it activates the light.