The formula to calculate PPFD (\(\mu mol/sm^2\)) from Lux (lx) is:

\[ \text{PPFD} (\mu mol/sm^2) = \frac{\text{Lux}}{\text{Conversion Factor}} \]

Where:

• PPFD is the Photosynthetic Photon Flux Density
• Lux is the illuminance in Lux
• Conversion Factor depends on the light source