LEDVANCE UV-C Sterilization BOX UV-C closed system Box suitable for disinfection of daily used devices like mobile phones, glasses, keys, etc. Key Features Dimensions: 219x126x63mm (Up to I-phone 11 Pro Max) Type C USB charging port Two disinfection modes: 6-minute Disinfection: For smooth surfaces such as cell phones or glasses (approx. 25 times per full charged battery) 9-minute Disinfection : For rough surfaces such as masks (approx. 16 times per full charged battery) LED wavelength 270-280nm Safety mechanism: UV radiation stops as soon its opened Disinfection Indicator Light-white Flashing red light : low battery Indicator Light Steady red light : disinfection and discharge Flashing green light : charging. Steady green light : fully charged.