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 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 …

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.

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 has an active calendar that includes multiple opportunities to network and socialize with industry peers. Browse educational courses as well as various society and section events.

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 …

The IES is committed to the ongoing development and delivery of cutting-edge education for lighting professionals. Available through modern learning modalities, as well as in-person …

IES, The Lighting Authority, LD+A, Leukos, Street and Area Lighting Conference (SALC), Light for Life, and Lighting Library are registered trademarks of the Illuminating Engineering Society.

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 …