News

April 16, 2014

DOE Publishes CALiPER Report on Dimming, Flicker, and Power Quality Characteristics of LED PAR38 Lamps

The U.S. Department of Energy's CALiPER program has released Report 20.2, part of a series of investigations on LED PAR38 lamps. Report 20.2 focuses on dimming, flicker, and power quality characteristics evaluated with a single dimmer.  More

March 5, 2014

DOE Publishes CALiPER Snapshot Report on LED MR16 Lamps

The U.S. Department of Energy's CALiPER program has released a Snapshot Report on MR16 lamps, which utilizes the LED Lighting Facts program's extensive product database to help industry stakeholders understand the current state and trajectory of the market for that class of products. More

March 4, 2014

DOE Publishes Special CALiPER Report on Retail Lamps

The U.S. Department of Energy's CALiPER program has released a special report on LED lamps available through the retail marketplace and targeted toward general consumers. The report follows similar reports published in 2011 and 2012. More

February 27, 2014

Next Generation Luminaires Design Competition Announces 2013 Outdoor Winners

The 2013 winners in the outdoor category of the Next Generation Luminaires Solid-State Lighting Design Competition were announced at the Strategies in Light conference in Santa Clara, CA. More

February 10, 2014

NAS Report and Microsite Trace SSL Evolution and Future Promise

The National Academy of Sciences (NAS) has added a new microsite to complement its 2013 report, Assessment of Advanced Solid State Lighting. The report explores the history of public policy on lighting, evaluates costs and consumer acceptance issues, assesses the development of LED and OLED technologies, and examines SSL products, applications, and deployments — noting the potential for “lowering U.S. energy needs” and positioning the nation as “a significant solid-state lighting manufacturer and technology provider.” More

February 7, 2014

2014 SSL R&D Workshop Presentations Posted

Thank you to all who participated in the 11th annual DOE Solid-State Lighting R&D Workshop, held January 28–30 in Tampa, Florida. With passion, enthusiasm, and lots of new ideas, 200 attendees explored such topics as creating added value with intelligent lighting and using spectral control to shape the lighting experience. The workshop presentations and materials are now available.  More

February 4, 2014

New Report: Early Lessons Learned in Bringing SSL to Market

The U.S. Department of Energy (DOE) has published a new report that documents early challenges and lessons learned in the development of the SSL market. Entitled "Solid- State Lighting: Early Lessons Learned on the Way to Market," it summarizes early actions taken by DOE and others to avoid potential problems that were anticipated based on lessons learned from the market introduction of compact fluorescent lamps (CFLs). The report also identifies issues, challenges, and new lessons that have been learned in the early stages of SSL market introduction.  More

January 20, 2014

Article Published on LED Lumen Maintenance and Light Loss Factors

An article has been published in LEUKOS: The Journal of the Illuminating Engineering Society of North America (IES) that may be of interest to the solid-state lighting community. Entitled "Lumen Maintenance and Light Loss Factors: Consequences of Current Design Practices for LEDs," the article was written by Michael Royer of Pacific Northwest National Laboratory and discusses complications related to the lamp lumen depreciation (LLD) light loss factor and LEDs.  More

January 9, 2014

DOE Publishes GATEWAY Report on Pedestrian Friendly Outdoor Lighting

The U.S. Department of Energy (DOE) has published a new GATEWAY report entitled Pedestrian Friendly Outdoor Lighting. Recognizing that pedestrian lighting has different criteria for success than street and area lighting, GATEWAY followed two pedestrian-scale lighting projects that required multiple mockups – one at Stanford University in California and the other at Chautauqua Institution in upstate New York – to gain insight into what those criteria might be, how they differ from street and area lighting applications, and how solid-state lighting can be better applied in pedestrian applications. More

December 20, 2013

DOE Publishes Report on Accelerated Life Testing of SSL Luminaires

The U.S. Department of Energy (DOE) has published the findings of a new study utilizing a highly accelerated life- test method (called the “hammer test”) intended to produce failures in SSL luminaires in a reasonable test period, with the goal of providing insight into potential failure modes. Entitled Hammer Testing Findings for Solid-State Lighting Luminaires, the report was prepared by RTI International for DOE’s LED Systems Reliability Consortium. In the testing described in the report, indoor SSL luminaires were subjected to extreme environmental stressors, including temperature cycling, temperature and humidity soak, and high-temperature bake, with power cycled to provide electrical stress as well.  More

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