Bullet points:1 principle the principle of sterilization: the use of high-energy ultraviolet light to break the double helix of dna and rna, so that bacteria can die or lose their ability to reproduce, and achieve sterilization.2 mini mini design: the germicidal light is about 5g in net weight, which is compact and loaded with the charging head for apple and type-c. It can be used with the phone to take with you, plug and play.3 source of high quality light source: using the high quality uvc light source, the characteristics of efficient uvc light short wave sterilization. The pure physical disinfection method is healthy without secondary pollution and long service life.4 efficient disinfection: close to the object's surface, sweeping back and forth for 1 minutes to eliminate 99% bacteria, efficient and fast.5 applicable applicable to places: the light can be used to disnfect for masks, elevator buttons, tableware, keyboards, water glasses, etc., to ensure a safe environment anytime anywhere.Specifications:Name: portable germicidal lampColor: black / whiteSpecification: for apple / type-c connectorPower: 0.4 WSize: about 34 * 18 * 7mm / 1.34 * 0.71 * 0.28inUltraviolet wavelength: 275nm uvcBest sterilization distance: within 3cmSterilization time: 1 minuteInput voltage: DC3.7VOutput voltage: DC5VNet weight: 4gUses: disinfection of masks, beauty supplies, feeding bottle, water glasses, etc.Packing list:Disinfection lamp * 1