Artificial plant-growth light will have light spectrums that favor blue and red portions because both colors have been found to be more efficient for photosynthesis.
The growth of plants depends largely on the rate at which they photosynthesize. By synthesizing carbohydrates, plants are able to increase their biomass.
Red and blue lights have been reported to favor photosynthesis over other light colors.
Thus, artificial plant-growth light always favors blue and red light.
More on light and photosynthesis can be found here: https://brainly.com/question/1602005?referrer=searchResults
