At present, more research has a certain result in the direction of plant absorption of light of different colors. The reason why plants are green is because they do not absorb green light and reflect the green light in the sun. Red light and blue light absorb more, especially chlorophyll requires a large amount of these two kinds of light.
There are also illumination time affecting plant growth, and the intensity of light is also the luminous flux received per unit area. Different plants, including transgenic plants, have different optimal requirements for light indicators.
At present, research on plant lighting is still concentrated in the experimental stage. Due to the large investment in research, the input of light source manufacturers is needed, and the economic value of output is small, so it is impossible to attract capital into the industry.
Plant lighting has high application value for special scenes such as space and polar. As for extensive commercial promotion, there is still a long way to go.