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PPFD is a value that explains how many photons in specific range (it’s from 400-700nm for plant growth) of the visible light spectrum (photosynthetic active radiation or PAR) that fall on a square meter of target area per second. The unit is µmol/m2s

In SGAL, you not only can check the total visible PPFD value but also check the value in different range (UV for 380 ~ 390 nm, Blue for 400 ~ 499 nm, Green for 500 ~ 599 nm, Red for 600 ~ 700 nm, IR for 701 ~ 780 nm) for light adjustment.

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【Lighting Knowledge】PPFD (Photosynthetic Photon Flux Density)
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