Introduction to the basics of led plant growth lights

Published by Cretivity 2021-08-02

Introduction to the basics of led plant growth lights

led plant growth lights are a kind of plant lights. According to the growth laws of plants, they must need sunlight. Plant growth lights use the principle of sunlight. The light replaces sunlight to give plants growth and development environment. Kind of mine is true. Principle: Light environment is one of the important physical environmental factors indispensable for plant growth and development. Through light quality regulation, controlling plant morphology is an important technology in the field of facility cultivation.


LED grow lights



1. Abundant wavelength types, just in line with the spectral range of plant photosynthesis and light morphology.

2. The spectrum wave width is narrow at half width, and can be combined as needed to obtain pure monochromatic light and composite spectrum.

3. Light balance of specific wavelengths can be concentrated Irradiate crops on the ground. 

4. It can adjust the flowering and fruiting of crops, and also control the plant height and the nutrient composition of the plant.

5. The system generates less heat and achieves a low heat load.

6. It takes up a small space and can be used in a multi-layer cultivation three-dimensional combination system. Realize miniaturization of production space;

LED plant growth lamp assembly
Lamp bead drive power aluminum substrate lamp housing heat dissipation accessories connector



The principle of plant growth light

1. The effect of the spectral range on plant growth 280~315nm: minimal impact on the morphology and growth process 315~400nm: less chlorophyll absorption, affecting the photoperiod effect, preventing stem elongation 400~520nm (blue) : The absorption ratio of chlorophyll and carotenoids is the largest and has the greatest impact on photosynthesis 520-610nm (green): the absorption rate of pigment is not high 610 ~ 720nm (red): the absorption rate of chlorophyll is low, which has a significant impact on photosynthesis and photoperiod effects 20 ~ 1000nm: low absorption rate, stimulating cell prolongation, affecting flowering and seed germination> 1000nm: converted into heat.

2. From the above data, light of different wavelengths has different effects on plant photosynthesis, and plant photosynthesis needs The wavelength of light is about 400 ~ 720nm. The light of 400 ~ 520nm (blue) and 610 ~ 720nm (red) contribute the most to photosynthesis. The light of 520 ~ 610nm (complex color) is absorbed by plant pigments at a very low rate.

3. The chromatogram ratio of the red and blue light of the plant lamp is generally between 5:1-10:1, and the ratio of 7~8:1 is usually optional. Of course, if conditions permit, the ratio of red and blue light can be adjusted according to the plant growth cycle. 4. When plant lights are used to supplement light for plants, the height from the leaves is generally 0.5 to 1 meter.



The application of led plant growth lights

1. The application of LED Grow Lights in plant cultivation. The northern environment is one of the important physical environmental factors indispensable for plant growth and development. Through light quality adjustment, it is a facility to control the morphology of the plant forest. A quantitative technology in the field of planting.

2. Research on the application of LEDs to plant facility cultivation. In the past ten years, the area of ​​facility horticulture in my country has developed rapidly, and the light environment control lighting technology for plant growth has attracted attention. Facility horticulture lighting technology is not mainly used in two aspects: supplementary lighting for the photosynthesis angle of plants when the number of births is small or the lighting time is short; second, it is used as the induction lighting for the photoperiod and light morphology of plants.

3. Prospect analysis of LED application in plant facility cultivation. LED is attracting the attention of the world with its inherent superiority. Especially in the context of the rising concern of global energy shortages, due to the high luminous efficiency, long service life, safe and measurable characteristics of LED light sources, the prospects of LEDs in the lighting market have attracted more global attention from.



Market analysis
Domestic market, research institute, school, agriculture bureau, international market trader, plant factory, greenhouse cultivation

(1) Current situation
(2) As a sub-industry of lighting, LED plant growth lamps have not started the market, especially the domestic market is basically zero. Domestic scientific research institutions have done some exploratory research. Industrialization will take time. Industry competition is disorderly, and it is just a by-product of lighting companies. The export government of traditional LED application products trading companies is not strong enough, it cannot form a climate, there is no technical support, Without technical support, interdisciplinary (electronics and biology) is difficult and lack of professional companies

Copyrights © 2021 Shenzhen Rio Tinto Opto-electrionics Technology Co., Ltd