Improve tooth color: cold light can improve tooth discoloration caused by smoking, coffee, tea, red wine, congenital, genetic and drugs.3 color lighting: 3 color teeth whitening machine for you to choose from, which is a safe and reliable method for teeth whitening without side effects.Angle adjustment: teeth whitening cold light adopted gooseneck tube design, so you can freely adjust the angle to whiten teeth, which is easy to operate.Cooling fan: the teeth whitening light has adopted a quiet and efficient fan to achieve the best cooling effect, and with a sound effect, more convenient for doctors to use.Safe to use: Teeth whitening lamp with silicone face mask, safe and harmless, effectively prevents infection, suitable for home and hospital useFunction:1. Improve the color of teeth: cold light can improve tooth discoloration caused by smoking, coffee, tea, red wine, congenital, genetic and drugs.2. 3 color lamps: 3 color teeth whitening machine for you to choose from, which is a safe and reliable method for teeth whitening without side effects.3. Angle adjustment: teeth whitening cold light adopted gooseneck tube design, so you can freely adjust the angle to whiten teeth, which is easy to operate.4. Cooling fan: the teeth whitening light has adopted a quiet and efficient fan to achieve the best cooling effect, and with a sound effect, more convenient for doctors to use.5. Safe to use: Teeth whitening lamp with silicone face mask, safe and harmless, effectively prevents infection, suitable for home and hospital use.Specification:Item Type: Light for teeth whiteningMaterial: plastic, siliconeFrequency: 50 to 60 hzWorking time: 0 to 30 minutesWavelength: Blue light 440 to 480nmRed light 605 to 645nmPurple light 375 to 415nmVoltage: 100-240VApplication:Adhesion of external pigments (tobacco, coffee, cola, etc.)Endogenous pigmentation (mild tetracycline teeth etc.)Tooth fluorosisCongenital uneven tooth colorSuitable for unknown cause of the black and yellow tooth surfacesPackage List:1 x host1 x Power Adapter1 x Protective Silicone1 x manualNote:Cold whitening light is sometimes postoperatively sensitive, but most postoperative sensitivity will disappear within 1 to 2 days. However, the structure of teeth after whitening will not change much after observation under the microscope, and long-term tracing will not cause tooth damage, so it is a safe and reliable method of bleaching. It is best to have a veili