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Below you'll find links to information about past webcast presentations related to solid-state lighting, including presentation slides and question-and-answer sessions, where available.


July 11, 2019
A presentation that provides an up-to-date evaluation of progress in addressing critical lighting quality factors, their implications for energy-efficient LED lighting, and where additional research is needed.


November 8, 2018
A presentation that described and demonstrated use of the Sky Glow Comparison Tool, a simplified method for comparing contributions to sky glow among lighting products by using various combinations of output characteristics (e.g., spectral content, light output level, percent uplight). 


November 6, 2018
A presentation that introduced comprehensive guidance for K-12 schools along with a review of the newest lighting technologies and strategies for classroom optimization and proficiency, with a goal of helping school energy managers use the best available applications for their schools. To assist with decision-making during the lighting upgrade process, presenters reviewed technologies such as tunable lighting, controls, and troffer retrofits, offering economic snapshots for the benefits of these upgrades. While focused on K-12 schools, this toolkit can be useful for multiple building types. 


October 25, 2018
A presentation that examined key findings from a 2018 DOE study entitled "An Investigation into high-achieving LED luminaires." The purpose of the study was to evaluate the performance of several LED lighting products with claimed efficacies near or exceeding 200 lumens per Watt, and the webinar looks at tradeoffs between efficacy, lumen output, light distribution, color temperature, and visual comfort in those luminaires.

NGLS Connected Lighting Evaluations: What Have We Learned So Far?

February 13, 2018
A presentation about lessons learned to date from Next Generation Lighting Systems (NGLS) competitions 1 and 2, including an inside look at the challenges encountered in the installation and configuration of these lighting systems in working classrooms. 

TM-30: What Have We Learned in the Past Two Years?

September 12, 2017
A presentation about the latest research on TM-30 – including studies relating TM-30 values to human evaluations and the specification criteria that can be derived from the results – as well as the future of TM-30 and color rendition measures. 

A Technical Discussion of DOE’s Sky Glow Study, Modeling Methods, and Key Variables

August 3, 2017
The second part of a two-part presentation about the DOE sky glow study that provides a deeper dive into the modeling effort as well as the influence of individual variables. 

The Impact of LED Street Lighting on Sky Glow

July 27, 2017
A high-level overview of the DOE sky glow study and its findings, to put them into a context of typical street lighting conversions taking place in the U.S. today. 

Get the Facts on LED Street Lighting

October 20, 2016
A presentation on key issues underlying concerns raised by the American Medical Association community guidance on street lighting, and their applicability to LED street lighting.

Tuning the Light in Senior Care

October 18, 2016
A presentation about a pilot study of LED lighting systems in preparation for a planned expansion and renovation at a Sacramento senior-care center.

Evidence-Based Design for Healthcare Lighting: Where’s the Evidence?

October 4, 2016
A presentation on a major literature review summarizing published evidence for the benefits of high-quality healthcare lighting reported in recent research.

The Nurses' Perspective on Hospital Patient Room Lighting

September 13, 2016
A presentation on SSL technology and healthcare lighting, with insights from a survey of 252 nurses on patient room lighting.

OLED Lighting Products—Capabilities, Challenges, Potential

July 28, 2016
A presentation on a new DOE market study of OLED lighting products.


October 22, 2015
A presentation on the current state of connected outdoor lighting system technology and where it is heading.


September 22, 2015
A presentation on why and how TM-30-15 advances light source color rendition metrics.


September 15, 2015
A presentation on the basics of TM-30-15, a new method for evaluating light source color rendition.


March 26, 2015
A presentation on DOE's GATEWAY demonstration of LED architectural and theatrical lighting at the University of Florida.

20K Hour Gateway Testing Results for I-35W Bridge

October 21, 2014
A presentation that provides an overview of the findings of the Phase II GATEWAY Demonstration report on the I-35W Bridge in Minneapolis.

Better than CFL? Dimmable LED Downlights in Hospitality Facilities

September 9, 2014
A presentation that reviews the results of a recent DOE study on dimmable LED downlights at the Hilton Columbus Downtown hotel.

LED Color Stability: 10 Important Questions

April 15, 2014
A presentation that examines the causes of color shift and the existing metrics used to describe color shift/color stability in LED lighting.

Maintenance Practices for LED Streetlights

April 14, 2014
A presentation addressing maintenance and reliability issues with LED street lighting.

Solid-State Lighting: Early Lessons Learned on the Way to Market

February 20, 2014
A presentation on lessons learned about LED market development to date, as well as the effects of key market development support efforts.

CALiPER Report 20.1: Subjective Evaluation of Beam Quality, Shadow Quality, and Color Quality for LED PAR38 Lamps

December 3, 2013
A presentation on the findings of the CALiPER subjective evaluation of LED PAR38 lamps, and what attributes to look for to increase the chances of getting an LED PAR38 lamp that has favorable lighting quality.

Pedestrian-Friendly Nighttime Lighting

November 19, 2013
A presentation on issues and considerations related to pedestrian-friendly outdoor lighting, such as color rendering, safety, and adaptation.

Using the Street and Parking Facility Lighting Retrofit Financial Analysis Tool

August 22, 2013
A presentation on how the Street and Parking Facility Lighting Retrofit Financial Analysis Tool can be used to evaluate costs and benefits associated with converting to more efficient street and parking facility lighting.

CALiPER: Troffers, Kits, and Tubes

June 20, 2013
Presentation on the CALiPER Exploratory Study on Recessed Troffer Lighting, in which a group of lighting designers, engineers, and facility managers convened in a simulated office environment to compare the performance of conventional fluorescent troffers with T8 LED tube retrofits, LED retrofit kits, and dedicated LED troffers.

Adaptive Street Lighting Controls

June 11 and 12, 2013
Two-part DOE Municipal Solid-State Street Lighting Consortium webinar discusses the experiences of early adopters of adaptive street lighting control systems, and explores the recently released Model Specification for Adaptive Control and Remote Monitoring of LED Roadway Luminaires.

MSSLC Member Case Studies - LED Street Lighting Programs

May 8, 2013
Presentations by DOE Municipal Solid-State Street Lighting Consortium member cities that provide information on planning, financing, and implementation of LED street lighting programs, and relate customer perspectives and lessons learned from their cities' installation process.

Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting Products

March 28, 2013
A presentation on DOE's recently completed three-part study of the life-cycle energy and environmental impacts of LED lighting products relative to incandescent and CFL alternatives — with a focus on findings from Part 3, augmenting the LCA results with chemical analysis of a variety of lamps.

Successful Selection of LED Streetlight Luminaires: Optimizing Illumination and Economic Performance

March 6, 2013
A presentation on the factors involved in successful selection of LED streetlight luminaires, with a walk through the modeling of a typical roadway layout — emphasizing key design elements for consideration.

Dimming LEDs: What You Need to Know

December 10, 2012
A presentation on the challenges and opportunities facing users trying to dim LED light sources today, with a review of the major types of deployed dimming technologies and equipment and some of the factors that lead to performance problems and incompatibilities.

Municipal Solid-State Street Lighting Consortium Retrofit Financial Analysis Tool

April 3, 2012
A presentation on the Retrofit Financial Analysis Tool developed by DOE's Municipal Solid-State Street Lighting Consortium, including a guided walk-through of what the tool can do, and how to use it to evaluate costs and benefits associated with converting to LED street and roadway lighting.

The L Prize PAR 38 Competition: A New Start

March 27, 2012
A presentation on the newly reopened L Prize® PAR 38 competition, including performance specifications, U.S. content requirements, the product evaluation process, and submission requirements.

The L Prize Winning LED A19 Replacement—What Commercial Building Owners/Operators Can Expect in 2012

January 18, 2012
A presentation on the status of LED A19 lamp options for commercial businesses, with an overview of DOE's L Prize competition and the rigorous lab, lifetime, and field testing that went into selection of the winning lamp.

Solid-State Street Lighting Consortium Model Specification for LED Roadway Luminaires

November 15, 2011
A presentation on the Model Specification for LED Roadway Luminaires developed by DOE's Municipal Solid-State Street Lighting Consortium.

LED Replacements for Linear Fluorescent Lamps

June 20, 2011
A presentation on issues surrounding LED products marketed as replacements for linear fluorescent lamps, and available resources for evaluating them.

CALiPER Round 11 Test Results

February 8, 2011
A presentation on the results and analysis of CALiPER Round 11 Testing.

Understanding and Evaluating LM-79 and LM-80 Test Reports for SSL Technology

August 10, 11, and 12, 2010
A three-part TINSSL webinar series on the fundamentals of LM-79 and LM-80 luminaire testing requirements and the use of a checklist procedure for analyzing test reports.

Evaluating LED Street Lighting Solutions

July 20, 2010
A presentation on current Municipal Solid-State Street Lighting Consortium activities and perspectives from members who are in the midst of implementing LED street lighting evaluations.

Municipal Solid-State Street Lighting Consortium Kickoff

May 6, 2010
A presentation discussing the Municipal Solid-State Street Lighting Consortium's purpose, first steps, and opportunities to participate.

LEDs for Interior Office Applications

March 18, 2010
A presentation comparing LED and fluorescent technologies for office lighting applications.

Hitting the Target: ENERGY STAR® SSL Outdoor Area Lighting

October 8, 2009
A presentation about ENERGY STAR criteria covering SSL-based outdoor area and roadway lighting, including an update on the new criteria and a comparison of currently available LED products to conventional lighting technologies in these applications.

LED Replacement Lamps: Current Performance and the Latest on ENERGY STAR

May 19, 2009
A presentation about the CALiPER program's recent benchmark testing of common omnidirectional incandescent lamps, and ENERGY STAR criteria for LED integral replacement lamps.

CALiPER Round 7 Testing Results and SSL Product Life Issues

April 9, 2009
A presentation about CALiPER's Round 7 testing results, and an update on the emerging understanding of service life and long-term reliability for solid-state lighting products.

LED Site Lighting in the Commercial Building Sector: Opportunities, Challenges, and the CBEA Performance Specification

March 26, 2009
A presentation about the Commercial Building Energy Alliances' (CBEA) efforts to explore the viability of LED site lighting in commercial parking lots.

IESNA LM-80-08 — An Overview of the Test Procedure and How it is Used for ENERGY STAR®

October 30, 2008
An overview of LM-80-08, Approved Method for Measuring Lumen Maintenance of LED Light Sources, and how DOE's ENERGY STAR® program for solid-state lighting luminaires will use LM-80 to estimate lifetime for qualified SSL luminaires.

L Prize™: The Race for Super Efficient Light Bulbs

September 23, 2008
An overview of the Bright Tomorrow Lighting Prize (L Prize) technology competition, which calls for super-efficient SSL products to replace two of the most common light bulbs used today: the 60-watt incandescent and the PAR-38 halogen reflector.

ENERGY STAR® for SSL:  Getting Ready for September 30

June 26, 2008
An overview of the DOE ENERGY STAR® criteria for solid-state luminaires, effective September 30, 2008.

SSL Luminaire Performance in the Lab: Just How Well Do They Perform?

December 13, 2007
An overview of the Commercially Available LED Product Evaluation and Reporting (CALiPER) Program, test procedures for SSL products, and recent test results.

LED Essentials – Technology, Applications, Advantages, Disadvantages

October 11, 2007
A broad introduction to LED technology, including technology status, advantages and disadvantages, current applications, future potential, and evolving path of LED technology from indicator lights to general illumination.

DOE Five Year Commercialization Support Plan

July 2, 2007
An overview of DOE's Commercialization Support Plan. Key elements include buyer guidance such as ENERGY STAR® criteria for SSL products, design competitions, technology demonstrations and procurements, product testing, technical information dissemination, and standards and test procedure support.