What is UVB Light?
UVB light—or ultraviolet B—is a category of UV light characterized by a wavelength of 290-320 nm. UVB makes up less than 0.15% of natural sunlight.
Is UVB Good for Plants?
UVB light has been proven to increase the production of antioxidants and flavonoids in certain plants. Many indoor growers use UVB lights in tandem with LED grow lights to cultivate a more flavorful product during the late flowering stage of growth.