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Watt Stopper LMLS-400 Single Zone Switching and Dimming Closed Loop Digital Photosensor

4.6 (1) Write Review
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$152.35

$ 72 .99 $72.99

In Stock

About this item

  • Daylight responsive on/off, bi-level, tri-level or dimming control for one lighting zone
  • Component of Digital Lighting Management integrated control system
  • 100 degree spatial response for optimal detection of ambient light level
  • Single Zone, 24 VDC
  • Switching/ Dimming


The LMLS-400 is a closed loop photosensor that measures the ambient light level in order to automatically switch or dim one zone of lighting. It is part of a Digital Lighting Management (DLM) system and sends light level signals to control loads connected to DLM on/off or dimming room controllers. The LMLS-400 has a photodiode with an extended range of 1-10,000 footcandles (fc), and photopic correction to mimic the human eye, for precise measurement of visible light.


George M.
Reviewed in the United States on March 12, 2021
Only for certain compatible Wattstopper systems