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Biological lighting adopts optical semiconductor lighting technology to master the principle of light’s effect on the growth of animals and plants, emotions, etc., through the light quality to adjust a specific range of wavelengths, stimulate photons to perform efficient photosynthesis, stimulate the growth of animals and plants, enhance immunity, plant flowering and fruit .

Biological lighting spectrum

Visible light absorption spectrum related to plants: chlorophyll/anthocyanin
Plant energy unit is mole (μmol/s/m2)

Absorption spectrum related to plant growth: chlorophyll

The impact of light on plants is divided into five levels

(1) Photomorphogenesis:
Morphogenesis caused by light. For example, it is the “infrared response that will end in a day.”
(2) Photoperiodism:
The pattern caused by the daily red light period. However, it is not the daily lighting time that plays the key role, but the daily dark time. The photoperiod phenomenon is related to the cycle of light.
(3) Phototropism:
The adjustment of the position of the plant part caused by the direction of the light source, that is, the plant grows toward the light. The phototaxis is related to the position of the light source.
(4) Phototaxis:
The “free” movement that plants sense under the influence also comes from “Heliotropism”
(5) Photosynthesis:
The process of transforming inorganic matter into organic matter through the assimilation of light energy. Photosynthesis is related to the spectrum and intensity of light.

Comprehensive of biological lighting spectrum scope and impact
Different wavelengths of light have different effects on plant photosynthesis

280 ~ 315 nm ==> minimal impact on morphology and physiological processes
315 ~ 400nnm ==> Less absorption of chlorophyll, affecting the photoperiod effect and preventing stem elongation
400 ~ 520 nm (blue) ==> The absorption ratio of chlorophyll and carotenoids is the largest, which has the greatest impact on photosynthesis
520 ~ 610nm ==> The absorption rate of the pigment is not high
610 ~ 720nm (red) ==> Low chlorophyll absorption rate, which has a significant impact on photosynthesis and photoperiod effect
720 ~ 1000nm ==> low absorption rate, stimulate cell elongation, affect flowering and seed germination
>1000nm ==> Converted into heat

Biological lighting benefits

In the greenhouse environment, regardless of the length of sunshine in spring, summer, autumn and winter, the biological lighting lamp can provide the sunlight required by plants through a specific wavelength range, extend the growth period of horticultural crops, and improve the quality. Dedicated to the production of flowers, vegetables and herbs, LED high-efficiency and low-power consumption greatly reduce the energy cost of agriculture.