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Ficus plant grown under a white LED grow light. A grow light is an electric light that can help plants grow. Grow lights either attempt to provide a light spectrum similar to that of the sun, or to provide a spectrum that is more tailored to the needs of the plants being cultivated (typically a varying combination of red and blue light, which generally appears pink to purple to the human eye).
More recent longer-term studies with whole plants in higher light indicate that light quality may have a smaller effect on plant growth rate than light quantity. Blue light, while not delivering as many photons per joule, encourages leaf growth and affects other outcomes. [9] [11]
Check out more gardening recommendations: 21 Best Gardening Tools to Tend Your Plants Like a Pro. 10 Self-Watering Planters to Make Gardening Much Easier
Many plants lose much of the remaining energy on growing roots. Most crop plants store ~0.25% to 0.5% of the sunlight in the product (corn kernels, potato starch, etc.). Photosynthesis increases linearly with light intensity at low intensity, but at higher intensity this is no longer the case (see Photosynthesis-irradiance curve). Above about ...
It comes in 24-inch and 48-inch lengths and has a color temperature that’s more like natural light, so it won’t appear purple or red like some other less expensive grow lights do. The company ...
Ultraviolet light is a form of electromagnetic radiation that ranges in wavelengths from 10 nm to 400 nm. [6] This wavelength is shorter than visible light but longer than X-rays. [6] As it sits on the lower edge of visible light, is what gives its name. The most effective wavelength of UV light is approximately 250 nm. [6]
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