Horticulture Lighting Knowledge

Effect Of Spectrum And Wavelengths

Deep Red 650-680nm

Main force of photosynthesis,and the effect of photosynthesis is better than blue light conditions. Help Plants to produce carbohydrates,which promote plants growing taller and bigger. In low light environment, red light has the highest photosynthesis efficiency of plants.

Infrared Red 730-760nm

Control the flowering phase of plants. Combined with deep red 660nm, it can achieve dual-light gain benefits,which is much higher than the photosynthesis efficiency of 660nm alone. Emerson Effect, plants feel that an object is blocking the light at a height if under the infrared light.They will work hard to grow taller.

Blue 420-500nm

Blue light plays a great role in the early stage of plant growth,helping plants to build developed roots. Increase the strength of the trunk Help plants grow more synthesize protein and amino acids. Appropriate blue light makes plants grow more symmetric and healthy..

UV 280-420nm

Affect the plant’s morphology due to the phototaxis of plants. Promote cryptochrome of plants,change the color of leaves,flowers and fruits. Promote Secondary metabolites of plants,change the Medicinal value and taste.

Green 500-570nm

Adding green light can neutralize the light produce by red and blue light, reducing visual light pollution.

Main Horticulture Lighting Parameter

PAR:Photosynthetic Active Radiation, the radiation flux measure between 400-700nm.

PPE:Photosynthetic Photon Efficacy, PPE is measured in micro moles per joule, PPE is a way to figure out how much PAR a lighting system makes every second.It can be tested by integrating sphere.

PPF:Photosynthetic Photon Flux, helps you to establish exactly how much of the light your grow lighting system is producing can be used by your plants for photosynthesis.

PPFD:Photosynthetic Photon Flux Density,PPFD is the number of photosynthetic active photons that fall on a given surface every second.

Spectrum reference

Light spectrum is paramount important for the plants growth.LED grow light widely used in horticulture lighting,because of the advantageous in spectrum design.We all know that different plants need different spectrum for growth. LEDESTAR focus on horticulture LED for 10 years, and research out the unique spectrum for different plant growth.

Here are some spectrum design:

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Horticulture LED certification

LEDESTAR attaches great importance to product quality, our LED will be tested by a third party, in a variety of harsh environment experiments, test the quality of the LEDs we have passed the certification such as LM-80, Q90.

What is LM-80?

LM-80 is a standardised testing method for measuring the lumen depreciation of LED over a period of time and under certain set conditions,Testing for 6000 hours at 55℃, 85℃, 105℃. It Is a very authoritative test and certification.

LEDESTAR had applied for LM-80 testing a few years ago and had successfully been certified, LM-80 is an important indicator in DLC certification,and in some areas, LED through LM-80 can received government subsidies.

What is Q90?

Q90 is the first internationally recognized industrial quality management standard, LED after the tested light quantum maintenance degree to reach 90%. The Q90 is also an important indicator of the DLC certification.