Ultraviolet (UV) light is a lamp using UV to achieve the purpose of sterilization. UV light at the wavelength of 253.7nm is the strongest, which can be used for disinfection and sterilization of water, air, clothing, etc. In general, this lamp can be utilized both in daily life and laboratories and operating rooms. For the former, bacteria and viruses carried on clothes can be killed by the UV light for about 5-30 minutes. For the latter, this lamp can be used for air disinfection. Main Features of the project: 1. Multi-level timer function. Disinfection time (30 minutes, 60 minutes, 120 minutes) is adjustable. The buzzer sounds when the lamp starts and stops working. 2. Delayed start function. The lamp will only start to work after the LED flashes and buzzer vibrate for 30 seconds. In this way, the operator can work away and avoid facing the UV light directly. 3. Wireless remote-control function. With this function, one can set the disinfection time and turn on or off the light. It is characterized by anti-interference and the remote control distance can reach 30 meters across the wall. 4. One board can match with different power UV light.