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Lighting and DLI

Daily light integral from PPFD and individual lighting periods.

Free. No registration.

Adjust the starting values to your operation.

Inputs

Period 01
Results
Supplemental DLI
23.04 mol/m²/d
Total DLI
mol/m²/d
Supplemental lighting duration
16 h

Sent only with your enquiry. The original CSV is not attached.

Periods are consecutive parts of a day, totalling at most 24 hours. Use average canopy PPFD per period. Natural DLI requires full-day measurements or a supported model; a noon PPFD reading is insufficient. Without natural DLI, the total remains unknown.

How we calculateDLI = Σ (PPFD × hours × 3600 / 1 000 000) [mol/m²/d]Method source