end of day Archives - All Things Lighting® Association https://www.allthingslighting.org/tag/end-of-day/ Illuminating the Complicated! Mon, 16 Oct 2023 06:54:24 +0000 en-US hourly 1 https://www.allthingslighting.org/wp-content/uploads/2023/08/cropped-ATLA-favicon2-32x32.jpg end of day Archives - All Things Lighting® Association https://www.allthingslighting.org/tag/end-of-day/ 32 32 Far-Red Lighting and the Phytochromes https://www.allthingslighting.org/far-red-lighting-and-the-phytochromes/ https://www.allthingslighting.org/far-red-lighting-and-the-phytochromes/#respond Thu, 14 Nov 2019 23:06:22 +0000 https://www.allthingslighting.org/?p=1241 Ian Ashdown, P. Eng., FIES, Senior Scientist, SunTracker Technologies Ltd. Published 18/06/04. Most LED grow lights feature blue and red LEDs whose peak wavelengths – approximately 450 nm for blue and 660 nm for red ­– have been chosen to coincide with the spectral absorption peaks of chlorophyll A and B molecules. In doing so, […]

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