Feature:1. HEAT DISSIPATION: Dental whitening lamp built in silent cooling fan prevents the machine from overheating during use and extends product life.2. PIGMENT REMOVAL: Effectively improves tooth discoloration caused by smoking, coffee, tea, red wine, etc. or congenital, genetic and drug induced discoloration.3. COLD BLUE LED LIGHT: 460490nm blue cold light wavelength through two pieces of more than 30 times coated optical lens to isolate harmful ultraviolet and infrared light of teeth.4. FLEXIBLE SUPPORT ARM: Balanced support arm design, can be hovered again in a certain position, multi joint can move up and down flexibly to meet your needs of various angles.5. SAFE WHITENING: Teeth bleaching light is a safe and reliable method of teeth whitening with low heat and even light that does not alter the dentin structure.Specification:Item Type: Teeth Bleaching LightMaterial: ABSVoltage: 110V-240VBlue LED Light Wavelength: 460-490nmWhitening Principle: Teeth whitening lamp is the wavelength between 460-490MM high strength blue LED light through two pieces of more than 30 times coated optical lens to isolate harmful ultraviolet and infrared light. The whitening agent is applied to the teeth, and within a short period of time, the whitening agent passes through the dentin tubules and produces oxidation reduction with the pigments deposited on the surface and deeper layers of the teeth over the years, so that the teeth return to their pre dyed whiteness.Whitening Time: 2 ~ 3 times per course of irradiation, 10-15 minutes each timeScope Of Application: Exogenous pigment adherence (smoke stains, coffee, cola, etc.) Endogenous pigmentation (mild tetracycline teeth, etc.) Fluorosis Congenital uneven tooth colorApplicable to dark yellow discoloration of the tooth surface caused by unknown triggers. .Package List:1 x Teeth Whitening Lamp1 x Support Arm1 x Power Cord1 x Power Adapter3 x Center Column Fixed Ring Accessories1 x Cushion Pad1 x Instruction Manual4 x Screw1 x Hex WrenchNote:Young to teenagers and pregnant women are not eligible for cold light whitening.