Doublesterilize, uv-c and ozone, which can avoid the defect of single Sterilization.(Ozone itself has a unbearable smell, after use need wait a long time 30-50 minutes to let it self-decomposition into Oxygen)2.If you need uv-c dedicated timing Lamp Base please search ASIN:B08GPHB38N | Can work in any regular screw-in socket, no special connections required. | Used for family sanitizeandDeodorizer,bathroom,bedroom, parlor, garage,basement , baby room, kitchen, dog/chicken house,etc... | 8000hr long lifespan, each bulb passed through 2 inspection processes,Do our best to provide customers with efficient and safe products. | We vouch for uv-c bulb’s efficiency and durability. In the unlikely event you are dissatisfied with your purchase, you are free to return it to us within the first 90 days and receive a FULL refund. UL Certification