Examples
Examples
Try the starting example
- Photoperiod segments [PPFD µmol/m²/s,hours]
- [[200,8],[400,8],[0,8]]
- Daily light integral (mol/m²/day)
- 17.28
- Lit hours
- 16
Try another scenario
- Photoperiod segments [PPFD µmol/m²/s,hours]
- [[250,8],[450,8],[0,8]]
- Daily light integral (mol/m²/day)
- 20.16
- Lit hours
- 16
Calculation method
Calculation method
Daily light integral (mol/m²/day)
Sum PPFD×hours×3600/1e6; sum segment hours must equal24.
Lit hours
Sum hours with PPFD>0.
Symbols and units
- a
- Photoperiod segments [PPFD µmol/m²/s,hours]
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- PPFD measurements, photoperiod segments. Returns Daily photon integral. All coefficients and observations are user supplied; results describe only the stated mathematical model. Quantities are deterministic calculations from supplied observations and assumptions; no external data is fetched. Supported limits: Finite inputs only; numeric fields bounded as labelled. Lists and JSON records are limited to 256 entries unless a stricter tool bound is stated. No automatic design approval, legal conclusion, treatment recommendation or safety certification.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.