Blue Light

Last updated: November 17, 2021

What Does Blue Light Mean?

Blue light has a very short wavelength, produces more energy, and is sometimes used in horticultural lighting systems. Blue light LEDs are used in greenhouses and interior plant lighting systems where plants are grown in a controlled environment.

The advantage of a blue LED lighting system is that it concentrates the specific wavelengths of light that produce the most energy for plants to use during photosynthesis.


Maximum Yield Explains Blue Light

The waveband of a blue light LED is much narrower than the waveband produced by conventional light systems, and the energy produced is far more intense, concentrated, and contains more photons essential for maximum plant growth.

Blue light systems are much smaller, more durable, and longer lasting than conventional grow light systems are. Blue light LED systems also operate at a much cooler temperature.

Because blue light growing systems are so durable and intense, NASA is exploring blue light systems for cultivating plants in space.

Blue light is harmful to human vision after prolonged exposure. Therefore, some caution must be exercised when using blue light systems.


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