Ultraviolet (UV) "light" is a form of electromagnetic radiaiton. It carries more energy than the normal light we can see.
The Science Behind UV-C Energy: How UV Light Works - UV Resources
Ultraviolet - Wikipedia
Lightning sparks scientists' design of ultraviolet-C device for food sanitization
Types of Energy from the Sun Center for Science Education
World's Largest Ultraviolet Disinfection Facility Tackles Chicago River, Chicago News
UV Light and Clothing > Experiment 22 from Earth Science with Vernier
Unwanted Indoor Air Quality Effects from Using Ultraviolet C Lamps for Disinfection
Ultraviolet Light, Definition, Uses & Examples - Lesson
Ultraviolet Radiation - Definition of Science Terms