It has a sensor and automatically gets switched on and off. Sterilisation of 99.99% in 3 minutes as per lab tests makes sanitation healthier and safer, especially for shared washrooms. Advanced Automatic UVC Toilet Steriliser is CE/FCC/ROHS Certified (NABL Lab Tested) with High Quality Latest Technology (275 nm UVC Wavelength) for enhancing safety at home, office, factory, hospitals, schools, banks, and malls, especially in washrooms used by multiple people. Active Disinfection (24 hours) | 180° Light Reflection Technology (Toilet + Seat) | Easy to Clean | Dustproof, Waterproof (IP65) Toilet Deodorising and Prevention of Infection: Prevents Odor-Causing Bacteria and Germs, creating a healthier and safer environment for your loved ones, especially kids, as they are sensitive and vulnerable. Hassle-free Convenient Installation: The perfect solution to prevent sanitation problems and diseases from the shared toilets, and that too is extremely easy to install, use, and charge.