For years, the popular image of cannabis growers has been scruffy hippies getting high on their own supply in a disorganized underground economy, rather than shiny white industrial agriculture facilities. Even larger-scale operations involved minimal quality control or lacked formal record keeping.
Lighting has a significant effect on marijuana yield, but optimizing yield involves far more than just exposing cannabis plants to constant, bright light. Like all plants, cannabis benefits from cycles of light and dark light. Moreover, marijuana yields can be increased by controlling the relative intensity of different wavelengths of light at different phases of the cannabis plant’s growing cycle.