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Cannabis Seedlings PPFD

How Much PPFD Do Cannabis Seedlings Need?

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- PPFD stands for Photosynthetic Photon Flux Density, which measures how much light reaches the plants that can be used for photosynthesis.
- PPFD is different from PPF, which measures how much light is emitted from the light source. PPFD depends on the distance and angle of the light source, as well as the reflectivity and shape of the grow area.

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- PPFD is expressed in micromoles per square meter per second (µmol/m2/s), which means how many photons of PAR (Photosynthetically Active Radiation) hit a square meter of surface every second.
- PPFD can vary across different points on the plant canopy, so it is important to measure it at multiple locations and calculate an average value. A higher PPFD value means more light intensity and more potential for photosynthesis.

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