‌Using both top grow lights and under-canopy LED grow lights is a better choice. ‌

This combined lighting method can more comprehensively meet the lighting needs of plants, thereby improving crop yield and quality. Top grow lights are mainly used to provide sufficient light to promote the overall growth and development of plants, while under-canopy LED grow lights focus on providing lighting for the canopy below the crop to avoid poor growth of lower leaves due to insufficient light. This lighting method not only helps to improve the photosynthesis efficiency of crops, but also promotes the overall health and yield of crops.

Specifically, the role of top grow lights is to ensure that plants can get enough light, which is essential for the growth of plant stems and leaves. The under-canopy LED grow lights compensate for the lack of light in the lower leaves due to dense planting of plants by providing additional light, thereby avoiding growth problems caused by insufficient light. This combined use method can ensure that all parts of the plant can get proper light, thereby promoting the overall growth and development of crops. ‌

In summary, using top grow lights and under-canopy LED grow lights at the same time can more effectively improve crop yield and quality, and is a recommended lighting method.