LED plant factories are revolutionizing traditional seedling cultivation through smart spectrum control technology, achieving a 40% yield increase for cucumbers and 33% dry matter enhancement in tomatoes using optimized ​660nm red + 450nm blue light combinations. China’s 14th Five-Year Plan for Digital Agriculture has spurred the construction of 100 national digital agriculture hubs, with vertical farms in Tongzhou (Beijing) and Chongming (Shanghai) integrating 300lm/W LED lighting and AI-driven dynamic light systems to reduce energy consumption by 30%.