Occupancy sensor adjusts light levels according to the presence of occupants. Daylight (photocell) sensor adjusts light levels automatically in response to the presence of natural light. Occupancy and daylighting (photocell) sensor performs the functions of both. The controls must be permanently installed. The controls may be mounted to a wall, ceiling or integrally into the fixture and function independently (not part of networked lighting controls). The fixture cannot exceed 35% of full wattage during unoccupied periods. On-off controls for HID fixtures are not eligible. Please see the required lighting workbook for upload.