Tunable LED Lights for Plant Growth in Vertical Farms

This project implemented a customized full-spectrum tunable LED plant growth lighting system for a vertical farming facility in an urban agricultural demonstration park. To address the distinct spectral requirements of strawberries, leafy greens, and medicinal plants, we developed a three-channel spectral control system that precisely regulates 660nm red light (promoting flowering and fruiting), 450nm blue light (enhancing chlorophyll synthesis), and 730nm far-red light (regulating photomorphogenesis) within a 3000K-5000K color temperature range.

The system integrates an intelligent light recipe module that automatically optimizes lighting parameters based on plant growth stages, environmental data, and yield targets. This achieved a 38% improvement in light energy utilization efficiency, a 42% increase in strawberry yield, and a 30% reduction in leafy green growth cycles. Compared to traditional high-pressure sodium lighting, energy consumption was reduced by 55% and heat dissipation decreased by 70%, effectively solving thermal management challenges in dense cultivation environments. After 10 months of operation, the project achieved a 60% increase in production value per unit of electricity consumed and a 93% standardization rate in crop nutritional content, providing a replicable high-efficiency lighting solution for urban agriculture.