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LED Street Lighting Colour Temperature and Health Impacts

November 9, 2017

This webinar provided information about the colour temperature and health impact of LEDs based on recent research. A review of spectral content and melonopic lux for various colour temperatures was also discussed. A number of jurisdictions that own and operate street lighting systems have chosen energy-efficient LED technology to reduce energy consumption and protect the environment. LEDs have a longer life span and improved physical robustness over incandescent light sources. However, there have been concerns and issues about the health impact of LED lighting due to its colour temperature.


  • Introduction to fundamental concepts of LED lighting technology
  • LED lighting colour temperature
  • Health impact of colour temperature
  • Questions and answers

Learning Objectives

  • Understand basic concepts of LED lighting technology
  • Understand colour temperature of LED lighting source
  • Identify benefits and potential issues of LED street lighting

Target Audience

Lighting designers, engineers, owners and operators of the roadway lighting systems


Don McLean, Lighting Designer and President , DMD and Associates Ltd.

Don has 37 years of experience in electrical and traffic engineering with a focus on roadway lighting. This industry leader is involved in numerous lighting committees and organizations which shape many of the current roadway lighting standards. Don was the lead author of the TAC Guide for the Design of Roadway Lighting and currently participates in the preparation of updates for the IESNA Roadway Lighting Standards.

Paul Lutkevich, Technical Director/Designer, WSP, Boston, U.S.

Paul has over 30 years of experience in design and construction of infrastructure systems including roadways, tunnels, pedestrian facilities, and transit systems. He is actively involved in the development of national and international standards for outdoor lighting. Paul was a member of the U.S. delegation in the FHWA/AASHTO Bilateral Lighting Technology Exchange Program between outdoor lighting experts and international organizations in Europe. He has participated in research with the FHWA investigating topics concerning lighting and safety, adaptive lighting implementation, visualization techniques, environmental and health impacts of lighting, and context sensitive solutions. Paul is co-author of the TAC Guide for the Design of Roadway Lighting and chair of the IES Roadway Standard Practice Committee.

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