where did you get it and how much was it
chicago_white_guy Reviewed by chicago_white_guy on . Question about light and PAR readings Hey i have a quantum meter that measures light, photosynthetic photon flux, in (micromoles of photons per square meter second) µmol m-² s-¹. The manual with the device says that full natural sun light should have a reading of 2000 µmol m-² s-¹. I took a few readings on the canopy of my room which varied between 350 and 410 µmol m-² s-¹. While my clone box at the back of the room is only getting between 50 - 80 µmol m-² s-¹ of light. My qestion is, are the clones getting Rating: 5