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SLFTL Tubular Daylighting System

LightFlex Tunable-White LED Suspended-Ceiling System

by Sunoptics

The LightFlex™ LED daylighting system (SLFTL) from Sunoptics® delivers natural light into interior applications and supplements daylight with tunable-white LED technology. It is the industry’s first LED tubular daylighting system with integrated controls to provide natural light, tunable-white LED light or a combination of both — in the same system.

LightFlex LED supports ones’ natural circadian rhythm by providing access to natural light throughout the day - while maintaining your desired light levels. Ideal for interior classrooms, offices and conference rooms with no window access.


For added energy savings, the embedded daylighting sensor detects the natural light and triggers lighting controls to adjust and supplement daylight, only when electric light is needed. Integrated nLight® wired controls enable the system to adjust, supplement, and maximize natural light and tunable-white LEDs.

Whether automated or manual, the result is an adaptable, fully-responsive visual environment. Click here for everything LightFlex LED!


  • Simplifies design to implement daylight harvesting
  • Provides color uniformity while providing the benefit of natural light throughout the day
  • Reduces clutter in the ceiling and the need for redundant lighting systems
  • Provides the benefit of tunable-white lighting from 2700k-6500k during "LED-On" mode
  • Open-Ceiling option

Listings: HVHZ Approved. FM Approved. AAMA Certified. NFRC Certified.

  • Suggested Replacement Products

  • Spec Sheets

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      Please be specific with your request and suggest adding a “need by date” if urgent request Note: your request will be routed to the BIM Design team. If escalation/questions is needed please email BIM@acuitybrands.com.
  • Specifications

    Brand Sunoptics
    Environment Indoor|Outdoor
    Lens Material Acrylic|Polycarbonate
    Listings AAMA|CE|FM|Hail Rating Class 1|Hail Rating Class 3|Hail Rating Class 4|HVHZ|UL
    Product Type Tubular Daylighting
    Series SLFTL
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