Light Measurements in Horticulture

If you are involved with horticultural lighting, you have likely heard of the measurement micromole, often written as umol or μmol. Micromoles are widely used to measure the number of photons or ‘light particles’ within the visible light emitted from a grow light. A photon is the smallest discrete amount of electromagnetic radiation that transmits light. It is the basic unit of all light. Continue Reading »
