LED grow light is a plant growth auxiliary light specially designed for the production of flowers and vegetables and other plants combined with high-precision technology. Generally, indoor plants and flowers will grow worse and worse over time. The main reason is the lack of light irradiation. By irradiating with LED lights suitable for the spectrum required by plants, it can not only promote its growth, but also prolong the flowering period and improve the quality of flowers.
The influence of different spectrums of LED grow lights
Different plants have different requirements for the spectrum, such as red/blue 4:1 for lettuce, 5:1 for strawberries, 8:1 for general purpose, and some need to increase infrared and ultraviolet. It is best to adjust the ratio of red and blue light according to the plant growth cycle.
Below is the effect of the spectral range of grow lights on plant physiology.
280 ~ 315nm: minimal influence on morphology and physiological process.
315 ~ 400nm: less chlorophyll absorption, affecting the photoperiod effect and preventing stem elongation.
400 ~ 520nm (blue): the absorption ratio of chlorophyll and carotenoids is the largest, which has the greatest impact on photosynthesis.
520 ~ 610nm (green): the absorption rate of the pigment is not high.
Around 660nm (red): the absorption rate of chlorophyll is low, which has a significant impact on photosynthesis and photoperiod effect.
720 ~ 1000nm: low absorption rate, stimulating cell extension, affecting flowering and seed germination;
>1000nm: converted into heat.
Therefore, different wavelengths of light have different effects on plant photosynthesis. The light required for plant photosynthesis has a wavelength of about 400 to 720 nm. Light from 400 to 520nm (blue) and 610 to 720nm (red) contribute the most to photosynthesis. Light from 520 to 610 nm (green) has a low rate of absorption by plant pigments.
Post time: May-26-2022