Description

There are different wavelengths of ultraviolet
(UV) light.
The UVB wavelength range is 280-320 nm, which
is 2% of the total UV radiation.
The UVB radiation affects the vitamin generation
in the human body, the immune suppression,
skin cancer and cataract. The intensity of this
light is measured in mW/m² (milli Watts per
square meter).