Germicidal lamp
![UV-C LED Lamp with Heatsink and power source](/Images/godic/202501/15/UV-C_LED_lamp4940.jpg")
![Glow of a germicidal lamp excited by a high voltage probe.](/Images/godic/202501/15/Germicidal_UV_discharge_tube_glow4940.jpg")
![Close-up of the electrodes and the safety warning](/Images/godic/202501/15/Germicidal_Lamp_24940.jpg")
![An EPROM. The small quartz window allows UV light to enter during erasure.](/Images/godic/202501/15/EPROM_Intel_C1702A4940.jpg")
A germicidal lamp is a special type of lamp which produces ultraviolet light (UVC). This short-wave ultraviolet light disrupts DNA base pairing causing thymine-thymine dimers leading to death of bacteria on exposed surfaces. It can also be used to produce ozone for water disinfection.