Kill dust : dust are small creatures that are invisible to the eye, on the bed, pillow, sofa, carpet, they are everywhere in and do a lot of damage: dust bite people , the skin and redness of the skin, let people not sleep and uncomfortable. The UV-C ray of this lamp is hundreds of thmes stronger than the sun, they can kill dust immediately. Kills : This lamp can easily kill include: mold, Staphylococcus , E.coli, flu etc. Ultraviolet light will break them down into water and oxygen. Eliminate odor: This lamp can eliminate odors like smoky smell in kitchen, musty smell in bedroom and bad smell in bathroom, shoe box, refrigerator, trash can etc. UV-C ray can kill odor-causing , AND quickly kills and breaks down organic or inorganic odorous substances. : can decompress small substances in the air, reduce that can cause asthma and allergies, Kills pollutants that cause cold, fluorine, allergies, nasal infection, making the air cooler Colour:As shown Material:PC Size:45*52mm Package Contents: 1 * Bulb Caution: UVC rays are harmful to eyes and skin, do not look at the lamp when it is turned on. People / pets / plants cannot expose to light. After use, because the lamp killed many in the room, please open the and doors, allow the room to ventilate 15 minutes, and then enter. Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.