The influence of the light spectrum on plant development is defined as photomorphogenesis.
Plants (cannabis, tomatoes, cucumbers, etc..) have different needs, but the light spectrum tends to impact plants in the following ways:
UV (280-400nm)– Develops plant defences and helps with disease resistance.
Blue (400-500nm)– Stimulates leaf/root growth, inhibits stem elongation.
Green (500-600nm)– Some Photosynthesis, can inhibit nutrients (for example anthocyanin).
Red (600-700nm)– Stimulates flowering/fruiting, germination.
Far Red (700-800nm)– Stimulates stem elongation.
In every grow light fixture, from reputable grow light manufacturers in the grow lighting market, comes along with detailed spec sheets that can help you learn more about an LED Grow light performance.

