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If you know the PPF of your LED and the viewing angle, here is the formula for the average PPFD at every point of space : PPFD = n * PPF / 2Π [1 – cos(α/2)] * d² α is the viewing angle n is the number of COBs d is the distance (m) this formula doesn't take into account the angular...

of course it can, it would go at it's maximum. It's been 3 days since I buy to kingbrite, they are fucking cheap. can't wait to receive my parcel !