Features: Teeth Whitening Machine is a cooling light device could emit specific wavelength, which is applied on the surface of the teeth so that teeth become whitening. High efficiency and flexible structural design, adjust angle freely and convenient to use. Selectable functions, convenient for operation. Features LED display, more convenient for dentist to use. Quiet and high efficiency fan to achieve heat dissipation effect. Exquisite, lightweight appearance design, suitable for dental clinic. Low heat and evenly teeth whitening light, having good effect. Specification: Condition: 100% Brand New Optional Plug: EU, US Light Source: Blue LED Cold Light Source Time Setting: 1~59 Minutes Input Power Supply: 100-240V Ac, 50/60Hz Output Power Supply: 12V Dc, 2.2A Principle: Using blue light with wavelength of 400-500nm (its temperature is not obviously changed, so it is called cold light), the peroxide whitening agent with concentration of 20%~38% will be applied to the tooth surface to catalyze the oxidation and reduction of hydrogen peroxide to produce free radicals, change the carbon ring structure of the pigment, and make the teeth pale and white Scope of application: Exogenous pigment adhesion (cigarette, coffee, cola, etc.) Endogenous pigmentation (mild tetracycline teeth, etc.) Tooth fluoride class Congenital uneven color Apply to black and yellow change of tooth surface caused by unknown factors Indications for cold-light whitening: The surface color of teeth darkens with age and even turns brown-orange.In addition, smoking, drinking coffee, tea, red wine, or congenital, genetic and drug (such as tetracycline) caused tooth discoloration, can improve the color of teeth through cold whitening.However, as young as teenagers and pregnant women are not suitable for cold light whitening. Steps for teeth whitening: Assessment of the oral condition Color comparison board Teeth cleaning or facial cleaning Gum protection Apply whitening agents Cold light machine irradiation, 8 minutes/time, can use 2-3 times Remove whitening agents and gingival protectors and rinse in large quantities View whitening effect Does cold light teeth whitening have side effect? Cold light whitening will sometimes have postoperative sensitivity, but most of this postoperative sensitivity will disappear within 1 or 2 days.However, the structure of teeth after whitening does not change much when observed under a microscope, and long-term tracking does not cause damage to the tooth quality, which is a safe and reliable way of whitening. The effect of tooth whitening General clinic whitening about cold light can make teeth whitening 8~12 levels, teeth whitening agent is containing 10%~16% carbamide peroxide, placed in whitening dentures, can be put on when sleeping at night for teeth whitening, having rapid effect, use the minimum amount to achieve good results. Whitening agent should be placed in the refrigerator when not in use.And cold light whitening still can have the circumstance of color reversion, can use white agent to maintain its white effect. Package List: 1 x Teeth Whitening Device 1 x Base 1 x Plug 1 x Red Goggles 1 x Blue Replacement Cover 5 x Wheel 1 x Bracket 1 x Manual 1 x Screw Kit