1Teeth 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. 2High efficiency and flexible structural design, adjust angle freely and convenient to use. 3Selectable functions, convenient for operation. Features LED display, more convenient for dentist to use. Quiet and high efficiency fan to achieve heat dissipation effect. 4Exquisite, lightweight appearance design, suitable for dental clinic. 5Low heat and evenly teeth whitening light, having good effect.