400~520nm (blue) – This wavelength can directly develop plant roots and stems, and has the largest absorption ratio of chlorophyll and carotenoids and the greatest impact on photosynthesis. Grow Light Lamp, 80W Led Grow Light , Led Grow Light Battery , Smart Grow Light ,Agricultural Led Grow Strip Light . Observe which plants are completely in the sun? Which ones are in the shade? When do the plants next to the wall get the sun? From this, you can further find out the growth of the same plant in different places, so that you will have a better understanding of the growing conditions required by the plant. The product will supply to all over the world, such as Europe, America, Australia,Pretoria, Albania,Iraq, Lyon.These light sources are to make plants produce the best photosynthesis, plants to get the best growth state, experiments and practical applications have shown that in addition to giving plants in the lack of light time to get supplemental light, but also to promote the differentiation of multiple lateral branches and shoots during the growth process, accelerate the growth of roots and leaves, accelerate the synthesis of plant carbohydrates and vitamins, and shorten the growth cycle.