Description:The up-to-date cool light Teeth Whitening Accelerator can convert electric energy into strong blue light. The cool blue light activates the whitening gel and oxidizes the pigment of the teeth through dentin tubes in the shortest time, discoloring the teeth to sparkling white both externally and internally. The 30-minute process ensures an improvement of five to fourteen shades. It is not a dream to make your teeth shine with brightness.Teeth whitening system Specifications:Broad Spectrum: 430nm ~ 520nm(Host lamps)Light Output power: Up to 2000 mW/cm110 Volts AC,60HzWeight: 4.7 KgMax. Working Radius: 38 cmQuiet fan operationMulti-arch whitening applicationFour high intensity LED lampDigital display with audio feedbackHigh power blue lamp Packing:Power cord*1Mouth sheath:1pcsGlass: 2pcsUser manual:1 pcRemote control:1 pcNumber pieces in packaging:1Number pieces in box:1Attention:Please check the electricity and plug in the unit, then press the start/stop button for 7-10 seconds to turn on the display of the unit. If there is a red light shown at the back of unit, please just leave the unit for 15-20 minutes and the unit will turn on automatically.Guarantee:Our products are shipped locally from the US, quickly arrived through UPS / USPS / FEXDE.