Scope of applicationYellow teeth, black teeth, smoke stained teeth, tetracycline teeth, betel nut teeth, fluorosis teeth and other pigmented teethparameterVoltage: DC6VLED light: 1Light source: cold light (high intensity blue light between 460-480 nanometer)Light intensity: 400-600 mcsWavelength: 460-480 nmA button battery can work for 48 hours.Product advantages1) Mini home, small and easy to carry;2) The unique LED blue light technology can filter other harmful light sources.working principleCold light tooth brightening is under the high-intensity blue light, through the properties of nanoparticles and photolysis, accelerate the activation of hydrogen peroxide, stimulateThe single-line free oxygen atoms are rapidly decomposed, allowing the brightening agent to penetrate the dentinal tubules and the color deposited on the surface and deep layers of the teeth.It produces a redox reaction that brightens the teeth.Instructions1) After applying the gel, turn on the beauty lamp and put it into the mouth for irradiation;2) The blue light emitted by the dental lamp will react with the gel to brighten the teeth;3) The lighting time of the dental lamp is 10 minutes at a time. If it needs to be irradiated for a long time, it can be extended by turning it on again after the irradiation is completed.