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Light Fundamentals

Your fertiliser supplies the building blocks – the energy comes from light. This course explains PPFD and DLI as measurable quantities instead of gut feeling, why the light schedule triggers flowering, how light changes your watering rhythm, and why CO2 is the second lever of photosynthesis.

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1

Light Is Food – PPFD and the Daily Ration

Light is measurable – just as sober a number as EC.
2

The Photoperiod – the Clock That Sets Flowering

Not how much light, but how long the darkness – that sets flowering.
3

More Light, More Thirst – Light and Feeding in Balance

More light means more factory throughput – and that pulls water and nutrients along with it.
4

CO2 – the Second Lever of Photosynthesis

Light without CO2 is like an engine without fuel – eventually one limits the other.