LumenOptix has melded high performance, latest generation LEDs and advanced optical design for a truly cost-effective LED downlight retrofit for any ceiling. The versatile SDR® comes in multiple size options, lumen packages and optical distributions with the ability to replace any existing recessed round downlight and accommodate every major dimming system. Plus, the simplicity of our patent pending tool-less installation helps eliminate costly renovation pitfalls inherent with most retrofits.





At the core of the SDR® is the most advanced LED technology featuring an evenly distributed beam spread that ensures a visually comfortable environment. By dispersing the source intensity of the LEDs, the SDR® design reduces glare without compromising the integrity of the light source.

SDR® does more than bring efficient quality lighting to any commercial or industrial space. Its advanced architectural features and variety of options ensure that the lighting is as beautiful as its environment.

Works Well with Others

SDR® is available in dimming configurations that match every major dimming system in the field with smooth obscuration allowing facilities to upgrade to SDR® without changing existing control systems. This is crucial in market segments like auditoriums, churches and theaters.

In addition to various beam control and reflector finishes, SDR® is available in multiple aperture sizes and lumen packages.

Features and Benefits
  • Converts any existing recessed round downlight to LED

  • Below the ceiling tool-less installation in minutes

  • Specification grade construction and optical system

  • Optimized for maximum efficacy and efficiency

  • Exceptional color rendering with 82 CRI typical

  • Superior fixture-to-fixture consistency over lifetime

  • Optional emergency battery back-up installed

  • 50,000 hour life at L70

  •  Significantly reduces maintenance costs

  •  CSA certified for damp locations

  •  Up to 90% in energy savings vs. conventional light sources

Made in U.S.A. of U.S. and imported parts, ARRA compliant   

  • Goof Ring
  • Remodel Ring
  • Step Down Transformer
  • Rough-In Kit
    (consult factory)





Housing: Made from 16GA galvanized steel with flange to accommodate different size openings. Three tool-less adjustable clips assure proper seating to any ceiling thickness.

Reflector: Proprietary designed, spun 16GA, polished anodized aluminum in narrow, medium and wide distributions for different applications. Available in clear Alzak®, semi-spec and diffused finish. Additional colors are also available.

Lens: Optional frosted or transparent.

Accessories: Goof rings, remodel rings, 347V step-down transformers. For rough-in kits, consult factory.


LED Light Engine: Lumileds L2C2 12XX series COB LEDs with typical 82 CRI minimum.

LED Drivers: Available with a variety of dimming options (see Spec Sheet for details). Attached or remote junction box pre-wired with flexible metal cable for connection to a 1/2" trade size KO. A pre-wired quick connect is included to simplify wiring.

SDR Technical Data





Rough-In Frame Kit
Model Number