410nm (Purple light) Decrease the absorption of chlorophyll,influence light cycle effect and prevent the stem's elongation. 460-470nm (Blue light) Chlorophyll and carotenoid absorption proportion are the largest.The biggest influence on photosynthesis.
The effect of LED Grow Light's various wavelength to the plantFor convenience of color properties's research,we consider the visible spectrum as a circle with 9 areas(see figure),which called Color Circle.The numbers on the circle mean the wavelength of the corresponding color,in unit "nm".



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