ArchLIGHT Summit: Full Schedule

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12:00pm CDT

A Proposed Two-Parameter Approach To Recommended Lighting Levels

Tuesday September 15, 2026 12:00pm - 1:00pm CDT

Illuminance, measured in foot-candles or lux, has long been the metric used to recommend lighting levels for specific applications. From Waldram’s Designed Appearance Method to Cuttle’s Mean Room Surface Exitance (MRSP) approach, there has been considerable interest over the years in moving away from illuminance as a basis for lighting design in favor of luminance and exitance.

This session will provide participants with a perspective of illuminance recommendations over time, along with a bit of history of some of the approaches to design criteria beyond illuminance. But it then takes the perspective that two metrics are likely necessary to adequately address end users’ perception of the adequacy of illumination in various applications.

This paper explores the combination of illuminance and MRSP in a systematic way through a series of analyses of representative applications to determine the efficacy of these metrics for lighting design recommendations and practice. Both illuminance and MRSE are determined for a series of scenarios using multiple room sizes, reflectances, and lighting systems for several application types (e.g., office, classroom, conference room, etc.). Proposed recommendations for these two parameters are then suggested for a variety of applications.

Speakers

Craig Bernecker

Professor, The New School

Dr. Bernecker has been a lighting educator for over 40 years. He is founder of The Lighting Education Institute, providing professional education, and Professor of Lighting Design and Director of the Masters of Fine Arts in Lighting Design program at Parsons School of Design, The... Read More →

Tuesday September 15, 2026 12:00pm - 1:00pm CDT
TBA

Technical, Seminar

CEU Type AIA, IDCEC
Audience Architect, End User, Engineer, Interior Designer, Lighting Designer
Level Intermediate
Session Track Technical Fundamentals + Standards, Human-Centered Design + Wellbeing

4:00pm CDT

“Selectable” Lighting: One Size May Not Fit All

Tuesday September 15, 2026 4:00pm - 5:00pm CDT

TBA

In recent years there has been a proliferation of LED products with combined attributes of selectable wattage, CCT, beam angles, etc. A primary benefit of integrating these features is a reduction in the SKU or part numbers for manufacturers and suppliers, but is it beneficial to the design community? In this panel discussion which brings perspectives from the lighting design and lighting manufacturer’s perspectives, we compare and contrast selectable lighting attributes in luminaires and consider which applications may benefit and where the use of a “one size fits most” lighting approach should be avoided.

Speakers

Michael Lunn

Cooper Lighting Solutions

Michael Lunn is a seasoned professional in the lighting industry, currently serving as the Product Marketing Manager for the HALO Recessed Product Line at Cooper Lighting Solutions. His extensive experience includes leadership roles at Eaton - Lighting and various technical support... Read More →

Paula Ziegenbein

Paula Ziegenbein discovered her passion for lighting as an undergraduate in electrical engineering, inspired by a professor’s course on Illumination Engineering. This sparked a 25-year career with OSRAM SYLVANIA, where she held leadership roles in applications engineering, product... Read More →

Shanna Snow Brown

Associate, Hartranft Lighting Studios

Shanna Brown is an Associate at Hartranft Lighting Studios with over a decade of experience in architectural lighting design. She holds a Master’s degree from Parsons School of Design and brings a human-centered approach that blends form and function, with a focus on the emotional... Read More →

Tuesday September 15, 2026 4:00pm - 5:00pm CDT
TBA

Design, Seminar

CEU Type AIA, IDCEC
Audience Architect, Engineer, Landscape Architect, Interior Designer, End User
Level Beginner, Intermediate
Session Track Technical Fundamentals + Standards, Design Innovation + Emerging Practice, Human-Centered Design + Wellbeing, Interior Design Applications

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