Feature: It destroys the DNA structure of viruses, bacteria and other microorganisms to lose the ability to reproduce, and then kills viruses, bacteria and other microbes. Ultraviolet UVC can kill the vast majority of bacteria and other microorganisms in the air and in water in seconds. It is particularly valuable that ultraviolet light can kill some viruses that are difficult to kill by conventional chemical methods such as chlorination. Parameters: Applications: Widely used in refrigerators, microwave ovens, drying racks, dryers and other appliances. Base type: E17 Material: quartz Size: about 5.3 * 1.7cm/2.08" * 0.67" Power: 3w Voltage: 10v Current: 300mA Effective sterilization range: 1 m3 UVC illumination: 450um / cm2 Packing list: 1Pcs UV Bulb Note: 1.Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!