Recent content by gianni24

  1. G

    How to convert Selfbuilt's Lightbox values to Lumens

    Hi selfbuilt, you say: I have two question on it: 1) why to choose a power relationship and not a quadratic one like this: y = a*x + b*x^2 ? 2) yor data seems undoubtfully non linear, but I cannot find any physical explanation to this fact, and my Physics degree unfortunately did not help...
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