The influence of different wavelengths of light on plant photosynthesis is different, and the light required for plant photosynthesis is about 400 ~ 720nm.
Light from 400 to 520nm (blue) and 610 to 720nm (red) contribute the most to photosynthesis.
520 ~ 610nm (green) light, the rate of absorption by plant pigments is very low. According to the above principle, plant lamps are made of a combination of red and blue to provide red and blue wavelengths of light, covering the wavelength range required for photosynthesis. In terms of visual effects, the red and blue combination of plant lights appear pink.
In terms of energy distribution, there are two peaks in the blue region of 445nm and the yellow-green region of 550nm. The 610 ~ 720nm red light required by plants is very scarce. This explains why plants grow poorly under white leds.
Used in plant lamps, the main purpose is to: harden the plant shell, increase resistance, dwarf some plants, and promote some plants to change color.
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