IES introduces horticultural lighting

31st January 2022
Tom Anstee

The Illuminating Engineering Society Introduces ANSI/IES RP-45-21 Recommended Practice: Horticultural Lighting

This standard describes the differences between architectural and horticultural lighting design, so that lighting professionals will have the necessary information to translate their architectural lighting know-how into horticultural lighting practice.


"Horticultural lighting is a science in its own right, bridging horticulture, botany, and illumination engineering," explains Ian Ashdown, Horticultural Lighting Committee Chair. "We wrote this document with one purpose in mind: to provide a framework for discussions between horticulturalists and lighting professionals."


Included in the Lighting Applications Standards Collection and published in consensus by the IES Horticultural Lighting Committee, this document is essential for lighting professionals interested in horticultural lighting for greenhouses, indoor farms, and building atria.

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