Don’t be fooled by the word of “full spectrum” when choosing LED grow lights

Jun 08, 2023

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The wavelength of the PAR value used by nations throughout the globe to research plant photosynthesis under solar radiation is only given in the 400–700 nm range. Despite having UV and FR partial bands, many LED plant lights that advertise as being full-spectrum still use PPFD to depict the spectral properties. The amount of micromoles between 400 and 700 nm is not mentioned since PPFD does not explain the radiation of UV and FR. This full-spectrum plant lamp's PPFD rating disregards any current spectral radiation. No, the manufacturers of the nominal full-spectrum plant lights were unaware of this little inaccuracy.

 

The so-called full-spectrum plant light undoubtedly seeks to convey the spectrum's diversity. The word "full" is not a precise definition. "Full" describes the broad spectrum of wavelengths. The "full spectrum" is different now. The largest definition range is between 380 and 780 nm. Since "full spectrum" has no agreed-upon meaning, everyone is free to provide their own. As a result, "full spectrum" has several different spectral definitions.

 

No authority has, as of yet, provided a "full spectrum" definition.

 

We think that the idea of the whole spectrum, which describes the spectral form, is hazy. The spectrum photosynthetic efficiency function's prescribed range, not its value range, is what determines the wavelength range of the plant lamp. Full spectrum does not always equate to strong photosynthetic rates and planting. The intent behind propagating the complete spectrum is to utilize the phrase "full" to make the impact of planting plant lights pleasant, which might lead to misconceptions among users of plant lights.

 

Light amount and quality combine to form the plant light spectrum. The method used to grow a particular plant still affects the wavelength range of the plant's light spectrum. The domain of the spectral design is established through the planting procedure rather than by planting beneath the spectrum.

There is a spectroscopic hypothesis that affects plant lamp design that exaggerates the spectrum's planting impact. The spectrum is simply the most appropriate, not the finest. This is how we see things.

 

VANQ has categorized the spectral forms of plant lights in order to investigate and convey the spectrum, and we have defined two spectral forms:

 

1. Continuous spectrum: The optical radiation strength does not seem to be zero throughout the specified range of wavelengths.


2. Discontinuous spectrum: The optical radiation power is zero throughout the specified wavelength range.

(Note: The optical radiation power's zero value does not necessarily have to be zero. It is known that the relative radiation power value reaches zero when it is less than or equal to 0.002. According to the definition of zero, photosynthesis and light form control are unaffected by this number.)

 

For the purpose of classifying spectral morphology for the study of plant lamp spectroscopy technology, the concepts of continuous spectrum and discontinuous spectrum are presented. Analysis of spectrum data using the same spectral morphology is more scientific. Important plant light parameters include QE, PPF, YPF, PPFD, etc. To make sense, a comparison must be made between these two spectral forms.

 

Between plant lights with a continuous spectrum and those with a discontinuous spectrum, there is no clear differentiation. Generally speaking, a correctly designed discontinuous spectrum has a better planting efficiency than a continuous spectrum, but its production cost is higher.

 

The already asserted full-spectrum plant light might be either a continuous spectrum or a discontinuous spectrum, in accordance with our categorization of spectral morphology.

 

The plant lamp's spectral form is divided into a continuous spectrum and a non-continuous spectrum, and the technical communication and expression are intuitive and clear, which is helpful for technical communication and product promotion and makes it simpler for plant lamp users to understand.

 

Plant lights' spectrum technology is complex and has to be explained using simple terms. Plant lights' spectrum designs must avoid leaning too much on fantasy and deceiving customers.

 

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