UV light systems use ultraviolet (UV) light to disinfect air, water, and surfaces. These systems work by emitting UV-C light, which is effective at killing or inactivating bacteria, viruses, and other pathogens. They are commonly used in hospitals, laboratories, and water treatment facilities to ensure a clean and safe environment. In addition to disinfection, UV light systems can also be used in various applications, such as aquarium maintenance and HVAC systems. These systems help reduce the spread of germs and improve overall air quality, making them valuable tools in both residential and commercial settings.