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The IES Street & Area Lighting Conference registration is now open. Take advantage of the Early Bird discount before it ends!

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The 2025 Industry Progress Report is now open for Submissions. Take advantage of the Early Bird discount and save $100!

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Don’t miss the 2025 edition of LightFair, the largest event for the lighting industry!  From innovations to education, it’s your one-stop for all things lighting.

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LightFair 2025 presented by Light + Building | Expert-led Accredited Education, Design innovations on Display and Lighting Community Networking | Experience the future of lighting | May 4-8 Conference | May 6-8 Exhibition | Las Vegas, Nevada | Register Today!
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Early Bird discounted registration rates are now available for the IES25 Lighting Conference. Take advantage of the lowest hotel rates too!

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IES25 The Lighting Conference | Registration now open
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IES Illuminance Selector

Design your projects to IES/ANSI recommended light levels faster than ever though the Illuminance Selector

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IES Sustaining Memberships | Support us, support the industry
Upcoming
May 15, 2025 12:00 pm 1:00 pm

ANSI/IES LM-85-23 for LED Product Design

With ANSI/IES LM-85-23 Approved Method: Optical and Electrical Measurements of LED Sources, optical measurements are now tied to junction temperature, eliminating a significant error source. LED measurements will now be…

Upcoming
May 21, 2025 12:00 pm 5:00 pm

Light for life — Security Symposium 2025

Overview Join us on May 21st for Light For Life®: Security, a one-day virtual symposium focused on the latest research and trends in lighting for security and reassurance, hosted by the…

Upcoming
July 17, 2025 12:00 pm 1:00 pm

Glare Affairs: Navigating Nighttime Discomfort with Diverse Models

What is a discomfort glare model, and why do we need one? This webinar will explore the methods used to develop discomfort glare models, the variety of models applied in…

Featured Event

Upcoming
April 28, 2025 4:00 pm 5:00 pm

EP Virtual Event | Lighting Business | Roles and Responsibilities

Join us on April 28th at 4 PM ET for an enlightening round table discussion featuring top professionals from across the lighting industry. This webinar is designed to provide emerging…

Upcoming
May 15, 2025 12:00 pm 1:00 pm

ANSI/IES LM-85-23 for LED Product Design

With ANSI/IES LM-85-23 Approved Method: Optical and Electrical Measurements of LED Sources, optical measurements are now tied to junction temperature, eliminating a significant error source. LED measurements will now be…

Upcoming
May 21, 2025 12:00 pm 5:00 pm

Light for life — Security Symposium 2025

Overview Join us on May 21st for Light For Life®: Security, a one-day virtual symposium focused on the latest research and trends in lighting for security and reassurance, hosted by the…

Upcoming
July 17, 2025 12:00 pm 1:00 pm

Glare Affairs: Navigating Nighttime Discomfort with Diverse Models

What is a discomfort glare model, and why do we need one? This webinar will explore the methods used to develop discomfort glare models, the variety of models applied in…

Featured Event

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LIGHTING DESIGN & APPLICATION

LD+A is for professionals involved in the art, science, study, manufacture, teaching & implementation of lighting.
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Sponsored Content

Offering 1 million square feet of permanent lighting exhibits, Dallas Market Center will host Lightovation June 18-21
Offering 1 million square feet of permanent lighting exhibits, Dallas Market Center will host Lightovation June 18-21.

Experience Architectural and Decorative Lighting at the June 18-21 Lightovation Show in Dallas

Anticipation is high for the summer edition of the largest residential lighting show in the Western Hemisphere, with special emphasis on the event’s architectural lighting resources and a complimentary hotel…
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Photo: Guy Peterson Office for Architecture

See Turtles

Illumination, marine turtles, and the state of play One of the current, and more interesting, corners of lighting is its interaction with nature. As we discuss the anthropogenic impacts of…
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Sightlines

Bridging the Gap Seeking accessible lighting design tools There was one thing my high school art teacher took great pleasure in repeatedly saying to me, often as I was struggling…
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