Lighting & Spectrum

PPFD Uniformity Estimator

Estimates average canopy PPFD from total fixture PPF over the canopy area, plus a uniformity estimate from beam-footprint overlap. For a rendered heat map with the full inverse-square light model, use the 3D view in /design.

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How it calculates

Average PPFD = total fixture PPF ÷ canopy area (the fundamental photon-flux relationship). Uniformity is a beam-overlap heuristic (footprint = 2·height·tan(beam/2)), not a solved light field — the /design 3D view computes true per-point PPFD.

What you enter

Number of Fixtures
Fixture PPF (µmol/s)
Canopy Area (m²)
Mount Height (m)
Beam Angle (°)

What you get

Avg PPFD (µmol/m²/s)
Min PPFD (µmol/m²/s)
Uniformity Ratio (est.)

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