GT-GL1901UVC disinfection lamp has a flexible UV light radiation setting that kills the virus and bacteria. It also features 15 / 30 / 60 minutes adjustable time, 3pcs infrared human sensors, 36W stronger sterilization power, 110 / 220V AC working voltage, microcomputer control panel, power switch, power cable, UVC lamp, 15 to 25 square meters working area, easy to use.