Optimize Your Crop Growth

Red Daily Light Integral (DLI) Calculator


Red DLI is the Daily Light Integral relating to red light. It measures the amount of red light (light between 600 and 700 nm) that plants receive. Red light is important in promoting plant growth during flowering.

OPTIMIZING CROP GROWTH

PHOTOSATURATION LIGHT AS A LIMITING FACTOR

DLI VALUES OF COMMON PLANTS

  • Lettuce: 12-18
  • Ornamentals: 9-13
  • Fruiting Vegetables: 15-25
  • Cannabis: 30-100
  • Tomatoes: 16-28

To use the calculator, first input your photoperiod and desired PPFD into the correct fields. Then input the red percentage of your lights into the red percentage field. This will yield your red DLI number in the last field.

hours

mol/m²/day

µmol/m²/s


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