Analysis of technical needs of LED plant lighting manufacturers

Plant lighting fixtures are a type of luminaire based on the application object. The illuminating object is a plant, and it is expected that the irradiated plant can produce the expected physiological response.

Analysis of technical needs of LED plant lighting manufacturers

Illumination is both an energy source and a signal source for plants. As an energy source, light provides energy for plant photosynthesis and provides heat to plants; as a signal source, light affects plant light, light form, physiological cycle, secondary metabolite production, and influence of stoma opening. By artificial light supplementation or full artificial light irradiation of plants, plants can grow faster, seedlings can be made shorter, and plant flowering can be controlled. Plants can be more flowered, flowers can be more beautiful, more fruits can be planted, and plants can be upgraded. Effective use of ingredients can reduce the occurrence of pests and diseases, as well as other goals we hope to achieve.

Analysis of Technical Requirements for Plant Lighting Manufacturers and Customer Distribution Research

Target-oriented to create the right plant light environment, parameters include: light quality, photon density, light direction and photoperiod. Light quality, ie spectrum. The spectrum required by a plant is a combination of the spectra emitted by one or more LED elements. LED components are divided into two categories, one is phosphor-converted LED, which is obtained by exciting one or more phosphors by a blue or violet chip, and the other is that the LED chip directly emits a narrow wavelength spectrum. At present, most plant LED packaging companies can provide fluorescent spectrum custom services for plant lighting companies, as well as narrow spectrum LEDs from 365nm to 740nm. The luminaire manufacturer obtains the required plant lighting quality by combining a variety of LEDs. The following figure is a custom-made light quality service provided by the plant lighting manufacturer.

Analysis of Technical Requirements for Plant Lighting Manufacturers and Customer Distribution Research

The photon density and the light direction can be spatially arranged by designing the luminaire as a "point, line, and surface" element, and a professionally designed optical reflector or lens is added to achieve the photon density of the target illumination range, photon density uniformity, and the direction of light required. For example, the flowering period control of dragon fruit is suspended by the "point" light source of bulbs on the stems of dragon fruit; the light between the tomato plants is double-sided light strips, which is a "line" light source to achieve inter-plant light supplementation; The light vegetable plant factory is placed on the top of each shelf by the "face" method of the light source panel;

The photoperiod (including frequency, timing and intensity infinite adjustment) is mainly realized by power supply design and hardware and software system control.

Plant lighting fixtures generally need to be used continuously for a long time. Due to the diverse application environment of the lamps, the protection level should be comprehensively designed according to the characteristics of the application. At least the following factors should be considered:

A. The length of use per day;

B. Ambient ultraviolet intensity;

c. Ambient temperature

D. Ambient humidity and potential liquid distribution;

E. Power environment

F. Temperature change rate

G. Biological environment

H. Air salt spray

I. Environmental vibration situation;

It is necessary to pay special attention to the fact that, in the gradual failure standard, the standard of the light maintenance rate corresponding to the life estimation should be greater than 90% to ensure the stable use of the planting system.

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