SunClean Downlight is a downlight with disinfection capabilities. 12 LEDs emit ultraviolet-C light at a 260nm-285nm wavelength to destroy the DNA of germs and viruses. For the first time, UV-C LED ultraviolet light has been added to traditional lighting fixtures to achieve the 3-in-1 functions of lighting, disinfection, and air purification. The light illuminates a room when people are present and begins disinfection when they leave. The user can toggle between lighting, disinfection, and automatic disinfection modes by flipping the light switch. An advanced 5.8G radar detects motion within three meters to automatically stop disinfection when people are in the light's vicinity.