👉 Ultraviolet light is a type of electromagnetic radiation that is not visible to the naked eye, but can be detected by specialized instruments. Ultraviolet light has a wavelength of approximately 280 nanometers (nm) and it is emitted from certain sources such as solar panels or laser lights. It can penetrate through materials with a thickness of less than 1 micron. The ultraviolet spectrum includes colors ranging from red to blue, which are the most common types. Ultraviolet light has been