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SLFTL Tubular Daylighting System

LightFlex Tunable-White LED Suspended-Ceiling System

By Sunoptics

    Tunable WhiteBuy America(n)
  • Overview
  • Specifications

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!

Click here to open our LENS-GLAZING SELECTION TOOL to assist you in selecting the ideal lens type for your project's location.

  • 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
  • Dual-Tube option | Quad-Tube option | Open-Ceiling option

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

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Light Source Daylight, LED - Dynamic
Dynamic Feature Tunable White
CCT / LED Color Variable
CRI 80, 90
Compliance Listing BAA, HVHZ, ROHS
Environmental Listing Hail Rating Class 1, Hail Rating Class 3, Hail Rating Class 4
Regulatory Listing AAMA, CE, FM, UL
Product Type Tubular Daylighting
Voltage Rating 120
Lens/Diffuser Material Acrylic, Plastic, Polycarbonate
Primary Material Acrylic, Polycarbonate
Series SLFTL

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  • Suggested Replacement Products


  • Spec Sheets

    Document Type Document Title Description Updated View
    SPEC SHEET CSI Specs for Sunoptics LightFlex LED-SLFTL.doc CSI Specifications for Sunoptics LightFlex™ LED (SLFTL) Tubular Daylighting System
    SPEC SHEET LightFlex LED.pdf Specification Sheet for Sunoptics LightFlex™ LED Tubular Daylighting System 1/6/2021 View
    SPEC SHEET SLFTL2 LightFlex LED.pdf Specification Sheet for Sunoptics Dual-Tube LightFlex LED Commercial Daylighting System 9/16/2019 View
    SPEC SHEET SLFTL4 LightFlex LED.pdf Specification Sheet for Sunoptics Quad-Tube LightFlex LED Commercial Daylighting System 1/6/2021 View
    SPEC SHEET Sunoptics CSI Spec Sheet.docx CSI Specifications for Sunoptics Skylight Products. rev 2020 5/21/2020

    Create Submittal Spec Sheet

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    CLICK HERE to start your request for a BIM Model or IES file.
  • Spectral Data Sheets

  • Guideline Specifications

  • BIM Models (Revit)

  • Technical Documents (e.g. Instruction Sheets, MSDS, CAD)

    Document Type Document Title Description Updated View
    CAD SDLTG SFLTL CAD.dwg dwg CAD file
    CAD SDLTG SFLTL CAD.pdf CAD Drawing View
    Installation Instructions Installation-Manual_SLFTL.pdf Installation Guide for LightFlex™ LED tubular daylighting system 3/5/2020 View
    User Manual LightFlex LED nLight Programming Guide.pdf LightFlex™ Tunable-White LED nLight® Programming guide View
    User Manual nTune Tunable White Programming Guide.pdf nTune Tunable White Programming Guide View
  • Utility Rebate Search

  • Replacement Parts

  • Confidential Documents

  • Marketing Material (e.g. Brochures, Sell Sheets, FAQs, )

    Document Type Document Title Description Updated View
    Brochures Sunoptics LightFlex LED_Brochure.pdf LightFlex™ LED Brochure View
    FAQ LightFlex LED_FAQs_ext.pdf LightFlex LED Frequently Asked Questions View
    White Paper Eneref Report_Classrooms Optimized w-Daylight-LED.pdf Eneref Institute report: Classrooms Optimized with Natural Daylight Increase Student Performance 4/2/2019 View
  • Need Product Assistance? (e.g. How to Buy, Technical Support, Warranty)

    How to Buy

    Sunoptics products are primarily sold through a network of agents and distributors.

    Technical and Design Support

    The Sunoptics team is dedicated to providing outstanding support giving each project design and installation individual attention.  Should you have any questions, email our technical support team:

    Quote Requests and Order Inquires

    For quote inquires, email our inside sales team:

    For order inquires, email our customer care team:

    Product Warranty

    • Click Here for Product Terms, Conditions and Warranties


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LightFlex LED tubular daylighting system video thumbnail

skylight, LED

LightFlex LED nLight Controls Demo video thumbnail

tubular skylight

Product Family


Lightflex LED Tubular Daylighting ...

The LightFlex™ LED (SLFTL) from Sunoptics® is the industry’s first tubular daylighting system with integrated tunable-white LEDs...

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