How to make LED lights regain profit points in plant factories?

The plant factory is a new agricultural production mode, which can be widely used in the cultivation of flowers, vegetables, medicinal materials and edible fungi. It is a modern agricultural sustainable production system built with high technology. In this production system, the three-dimensional cultivation technology is used for annual production. The plant yield is dozens or even hundreds of times that of traditional agricultural production. The physical agricultural technology is used instead of chemical agricultural insecticidal sterilization to make the plant quality reach green or even organic quality. The resource recycling technology not only improves the utilization rate of various resources, but also achieves zero emission and zero pollution, and the plant quality produced reaches green or even organic quality. As the application cost of plant artificial radiation sources (PARS) based on LED technology is further reduced, plant factories will usher in a golden period of development. I. Development of plant lighting technology in various countries Greening plant lighting is another blue ocean in the economic development of LED lighting in recent years. Since 2013, the output value of LED application in the field of global plant lighting has begun to show rapid growth. At present, in the field of plant factories, Japan, the Netherlands, the United States, Sweden, the United Kingdom, and Israel are also at the forefront, and South Korea, Singapore, and China (12th Five-Year 863 project support) are developing rapidly.