The total amount of photosynthetically active radiation (PAR) that a plant receives over the course of a day. It’s measured in moles of photons per square meter per day (mol/m²/day) and indicates the total quantity of usable light (within the 400-700 nanometer range) that plants receive for photosynthesis. In cannabis cultivation, optimizing the DLI is crucial for ensuring healthy growth, high yields, and efficient light usage in both indoor and outdoor environments.
🔊 DAY·lee lyt IN·teh·grul
In the Wild — Example
Measuring my daily light integral helped me realize I was running my lights too short and limiting my yield.
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