Founded in 1906, the Illuminating Engineering Society (IES) is the global authority on illumination. We offer professional development, publications, and standards to lighting experts worldwide, …

The IES is dedicated to improving the lighted environment by bringing together those with lighting knowledge, and by translating that knowledge into actions that benefit the public.

The IES Lighting Library Standards Collection Discover IES Standards through our cloud-based platform Our standards library is unique in the lighting industry because of our attention to …

About the IES The Lighting Authority Established in 1906, the Illuminating Engineering Society is the recognized technical and educational authority on illumination. Our mission is to improve …

The IES offers a variety of grants and scholarships designed to support professionals and students in the lighting industry. These financial resources help foster the development of the …

The IES is committed to providing lighting professionals with resources and tools that support your efforts to enhance your lighting knowledge, work more efficiently and stay updated on the very …

Nov 8, 2024 · Submissions for consideration for the 2025 IES Street and Area Lighting Conference in New Orleans, LA, are now being accepted through February 6, 2025.

The IES is the recognized technical authority on illumination. For over a century its objective has been to communicate information on all aspects of good lighting practice to its members, to …

The IES Illuminance Selector is a powerful search tool developed to provide fast access to critical lighting criteria from over 25 different tables published in ANSI/IES Recommended Practice …

ANSI Approved (under continuous maintenance), Nomenclature and Definitions for Illuminating Engineering. Open access.