Contemporary styling and highly efficient optics make Harmony the ideal luminaire for office, educational and healthcare applications requiring long or continuous operation. LED optimized lenses provide superb visual comfort, while extruded aluminum divider rails with specular aluminum inserts create a uniquely 3-dimensional architectural look. DLC rated Harmony is available in 1×4, 2×2, and 2×4 configurations and is performance certified to DLC Standard and Premium requirements.


OPTICS   LED optimized Satin Ice (SI) lens for maximum efficiency.

LED  LED modules in 80/90 CRI @ 3 SDCM. L70= 50,000 hours.

DRIVER   Class 2 AOC driver, 120/277V input, PF > 90%, THD < 20 @ 120V. 0-10V dimming to 1%. -20C to +50C operating range.  Field replaceable. 

CERTIFICATION   Luminaires are cETLus listed conforming to UL STD. 1598 and certified to CSA STD C22.2 NO. 250.0. Suitable for dry & damp locations. Union Made in the United States of America. I.B.E.W. RoHS compliant.


  •  Specification
    .IES Files
  • HML 2x2 DLC (S)Specification SheetsInstallation GuidesIE Files
  • HMLP-2x2 DLC (P)Specification SheetsInstallation GuidesIE Files
  • HML 1x4 DLC (S)Specification SheetsInstallation GuidesIE Files
  • HML 2x4 DLC (S)Specification SheetsInstallation GuidesIE Files
  • HMLP 2x4 DLC (P)Specification SheetsInstallation GuidesIE Files
  • Revit Files
  • LED Brochure
  • Tunable White
  • Rapid Ship

Made in USA

Day-O-Lite products have been designed and manufactured in our Warwick, Rhode Island facility for over 75 years. We are a founding member of the 'Made in USA' brand and our products are compliant with the Buy American Provision and the American Recovery and Reinvestment Act.

Custom Capabilities

Day-O-Lite offers a wide range of custom capabilities ranging from simple variants of standard products to complete custom design and fabrication. Our goal is to provide value-added customization services through advanced design, engineering and manufacturing technologies.

Customer Service

Day-O-Lite's focused mission is to deliver sustainable high-quality commercial lighting products, and outstanding, personalized customer service to our clients. Our team does so through a commitment to excellence, continuous improvement and technology at all levels of our organization.