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Why LED grow lights are suitable for indoor planting?

Published by Cretivity 2021-08-02

Why LED grow lights are suitable for indoor planting?

 

In indoor cultivation environment, plant lighting is an essential source of energy for photosynthesis.

LED plant lights have overwhelming advantages that are not available in traditional supplementary lights,

and will surely become the first choice for main or supplementary lights in large commercial applications such as vertical farms and greenhouses.

They also emit very little heat. Although LEDs are more expensive, they are very efficient.

They consume half of the power of fluorescent lamps, and their service life is 5 times that of fluorescent lamps.

 

The effect of light

A growth lamp is an artificial light that can help plants grow. Plant growth lights either try to provide a spectrum similar to that of the sun, or try to provide a spectrum that is more suitable for the plants being planted. The way to mimic outdoor conditions is to use changing colors, temperatures, and the spectral output of growing light, as well as changing the intensity of the lamp. According to the type of cultivated plant, the cultivation stage (such as the germination/vegetative period or the flowering/fruiting period) and the photoperiod required by the plant, the specific range of the spectrum, the luminous efficacy and the color temperature are ideal for a specific plant and time period .

Indoor LED plant growth lights can provide the light required by plants. Light will affect the photosynthesis in plants, and because the sun has different light colors and wavelengths, it has a very large impact on the photosynthesis of plants, such as chlorophyll. A and chlorophyll b and carotenoids absorb light differently, and the required light wavelength is also different.

 

Solar spectrum

Solar spectrum

 

 

The solar spectrum is an absorption spectrum of different wavelengths. It is divided into two parts: visible light and invisible light. Visible light has a wavelength of 400-760nm. After being scattered, it is divided into 7 colors: red, orange, yellow, green, cyan, blue, and purple. When concentrated, it becomes white light. Invisible light is divided into two types: infrared light with a wavelength greater than 760nm and a maximum length of 5300nm; ultraviolet light with a wavelength of 290-400nm located outside the purple light. Sunlight has obvious biological effects. Plants can synthesize under the action of sunlight. Animal skin undergoes conversion of vitamin D under the action of sunlight. Infrared rays have a huge thermal effect, and ultraviolet rays have obvious bactericidal effects.

 

plant spectrum

Plant spectrum

 

The light spectrum required for plant chlorophyll a, chlorophyll b and carotenoids is probably between 360nm~700nm as shown in the figure above, and the illumination provided by the current full-spectrum plant growth lamp can be seen (as shown in the figure below). To provide plants with the required spectrum.

 

led grow light

LED grow light spectrum

 

LED grow light is energy-saving and efficient

 

"According to some accounts, LEDs have two main advantages: First, they emit light of specific wavelengths that can be fine-tuned according to the plant and its growth stage. Second, they use less energy, 60% less than traditional light bulbs."

 

The current technological development makes the plant lights continue to renew and iterate, and the traditional bulbs have also been replaced by LED plant lights, which are high-tech products of the new era. Moreover, indoor planting is developing in more and more places around the world. Needless to say, the demand of indoor planting for light is needless to say, and LED plant lights can not only satisfy plants in terms of light, but are also deeply loved by people in terms of function.

Low heat radiation to avoid "high temperature damage" of plants

Using the same energy, the LED plant growth lamp as a cold light source will produce more light and less heat, while the sodium lamp with a hot light source will produce a lot of heat and less light while illuminating. Therefore, compared with the two kinds of lamps, the LED plant growth lamp not only saves energy, but also converts more energy into light energy, providing effective photosynthetic radiation for plants, and at the same time, it can effectively avoid plant "high temperature damage" and help users reduce planting risks.

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

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