Presented by the Designers Lighting Forum of New York

March 12-13, 2019

New York Hilton Midtown, 1335 Avenue of the Americas, New York, NY 10019

2019 Lighting Quality Metrics

Lighting Quality Metrics for Products and Projects

Ute Besenecker, DesignLights Consortium and Kate Sweater, Dwaal Lighting Design

Tuesday, March 12
1:00pm – 2:00pm
Room: Nassau West
Credits: 1 AIA LU


Quality-of-light metrics are available to evaluate and predict the lighting quality characteristics of luminaires, including color quality, distribution, and glare performance. Achieving high quality of light in the actual built environment, however, depends both on the quality of light delivered by the luminaire and the overall design and application of the project.

In this session the presenters will review and discuss a selection of quality metrics both at the luminaire and at the project level using several lighting project examples including retrofit and new construction. Using these examples, the session will illustrate the value of quality-of-light metrics both as tools for evaluating the potential lighting quality of a product, and for achieving good quality of light through lighting design and application. The session will also clarify when the use of specific quality metrics are appropriate, and where the limitations are.


Ute Besenecker, DesignLights Consortium
Dr. Ute Besenecker works for the DLC as Technical Manager for Lighting Quality. She focuses on policy development to foster the adoption of energy efficient, high quality lighting solutions that support human wellbeing, comfort and performance. Prior, Ute worked at Lighting Science Group as Senior Scientist and Director of HealthE Lighting. In addition, her background spans human factors research as well as professional design practice in lighting and architecture, working with well-known designers, amongst them Leni Schwendinger, Jan Moyer and Howard Brandston. She holds a Ph.D. in Architectural Sciences from Rensselaer Polytechnic Institute, as well as Master’s Degrees in Lighting and Architecture from the Lighting Research Center, Columbia University, Leibnitz Universität Hannover, and Polytechnico di Milano. Ute is a member of the IES, CIE and IALD. Her research has been presented at international conferences and published in peer-reviewed magazines.

Kate Sweater, Dwaal Lighting Design
Founder/ Principal of Dwaal Lighting Design - Kate Sweater has 15 years of experience in the lighting industry. She holds a Master of Science in Architectural Sciences (Lighting) from the Lighting Research Center (LRC) at Rensselaer Polytechnic Institute, and a Bachelors of Fine Art (Furniture) from the Rhode Island School of Design (RISD). She is Lighting Certified by the NCQLP and is an Associate Member of the International Association of Lighting Designers (IALD). She is a member of the IES Museum and Gallery Lighting Committee as well as the Brightness Committee. Kate Sweater has extensive experience with human perception of lighting, lighting for art, and lighting for spaces ranging from high-end homes and hospitality to low-income housing and public spaces.

Dwaal Lighting Design is known for research, alongside thoughtful creative design. We will try to discover the essence of the space and find ways to express this through lighting. We consider first and foremost the people who will be using, occupying or wandering through the spaces. Dwaal offers architectural lighting design at a high level of creative design, research and development, and technical proficiency. Dwaal has a reputation for advocating for the end-user while considering the broader goals of the project. Our goal is to design lighting that will make a positive difference.