LED Grow Lights – Which is better, red and blue spectrum or full spectrum?

There is essentially no difference between red and blue spectrum plant growth lights and full-spectrum plant growth lights. Their spectra are all simulating the solar spectrum to supplement light for plants.

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In the field of greenhouse planting, due to the short sunshine time in winter and the influence of weather such as smog, rain, and snow. Many planting users have installed grow lights in the greenhouse to make up for the lack of natural light and solve the problem of little light for greenhouse plants. During the installation process, we also learned that many users know the purpose of plant growth lights, but they don’t quite understand the difference between the red and blue spectrum and the full spectrum.

Red and blue spectrum or full spectrum

All things grow by the sun. There is essentially no difference between red and blue spectrum plant growth lights and full-spectrum plant growth lights. Their spectra are all simulating the solar spectrum to supplement light for plants. 

The ultimate purpose is to promote plant growth, control flowering, and fruiting, increase yield, increase productivity and improve the economic benefits of growers. So there is essentially no difference between the two.

For example, in the 240w full-spectrum plant growth lamp used in a rose base in Yunnan, China, and the high-power red and blue spectrum plant grow lights used by Tyler Farm in the United States. The specific spectrum of grow lights used is provided according to the characteristics of plants and the needs of users.

Red and Blue Spectrum Grow Lights

After long-term research and discovery, the spectrum of visible light from the sun that has a major impact on plant growth is the red light spectrum and the blue light spectrum.

Blue light with wavelengths around 450nm can promote plant germination.

Red light with wavelengths around 650nm can promote plant photosynthesis, flowering, and fruiting.

The red and blue spectrum grow lights use the red and blue light bands that have the main effect on plants, to meet the light needs of different plants at various stages.

Full Spectrum Grow Lights

The red and blue spectrum grow light spectrum contains the red light spectrum and blue light spectrum. The full-spectrum plant growth light simulates sunlight with a spectrum close to sunlight, including red, orange, yellow, green, cyan, blue, and purple, suitable for a variety of plants.

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