A measure of total visible light. In cannabis growing, lumens are used as a more direct way to describe the power of grow lighting (as opposed to wattage). Since lumens are a measure of visible light, grow lights that make lots ofnon-visible light aren’t typically measured in lumens.

Similar Terms

  1. Photon
  2. Light unit
  3. Illuminance
  4. Brightness
  5. Radiance

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