ILC-SWX-2 Low Voltage Ceiling Mount Occupancy Sensors ILC-SWX-2 Low Voltage Ceiling Mount Occupancy Sensors

Daylight Harvesting & On/Off Photo Sensors - Low Voltage

Model: ILC-SWX-250-1-D

Intelligent Lighting Controls photocell sensors control lighting according to measured ambient lighting in a space. Basic on/off units signal a connected power pack to turn lights off when ambient levels are high enough that desired overall light levels are maintained. Units with the daylight harvesting (dimming) option track a space’s overall illumination and dim connected lighting to achieve energy savings. During times of high daylight contribution to a space, controlled artificial lighting will be gradually dimmed to a minimum dimmed level.  During times of no or low daylight contribution, controlled artificial lighting will increase back up to its maximum level. The sensor can also be configured to signal a connected power pack to switch lighting off completely in maintained high daylight conditions. Additional configurable parameters include high & low trim levels and fade rates. All photocells provide the option of selecting the ambient light threshold (e.g., setpoint) from a range of preset values or running an auto-selection mode where the unit will determine the setpoint based on the measured amount of light it is controlling.


Daylight Harvesting & On/Off Photo Sensors



  • Operating voltage:  12-24 VAC/VDC
  • Current draw:  2mA
  • Dimming capacity:  50mA
  • Dimming compatibility:  0-10 VDC ballasts or drivers, compliant with IEC 60929, Annex E.2


  • Size:  4.00” Diameter x 1.25" H (10.16 x 3.17 cm)
  • Weight:  4.75 oz.
  • Color:  White


  • Operating temp:  -10°F to 122°F (14°C to 50°C)
  • Relative humidity:  0-95% Non-Condensing, Indoor Use Only

Operation Modes:

  • Daylight Harvesting to Low Trim
  • Daylight Harvesting to Off (requires power pack)
  • Photocell Override (On/ Off)

Code Compliance:

  • Sensors can be used to meet ASHRAE 90.1, IECC, & Title 24 energy code requirements
  • Auto-Setpoint Selection Mode
  • Adjustable High & Low Dimming Trim Level
  • Works Together w/ Low Voltage Occupancy Sensors
  • Compact Size and Matte Finish
  • Four Contractor Friendly Mounting Methods
  • Mounting Nipple Attachment with Integrated Hole Saw