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Some extra titbits for the enthusiastic learner.
Some extra titbits for the enthusiastic learner.
Left over content from the creation of other pages that is just so useful we couldn't let it slide!
Light Measurements
Light Measurements
PPF (photosynthetic photon flux) is a measure of how much plant-usable light is released by a bulb per second and is measured in micromoles of light per meter per second (umol m-2s-1).
You may also see PPFD (photosynthetic photon flux density), which is a measure of PPF as it reaches a surface like a plant leaf. PPFD goes down as your plants get further away from the light source.
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