* Nice new design * With 7-inch touch screen. * With 100%, 80%,60%,40%,20% power output. * With blue / red / blue & red & purple / blue & purple light.(Blue light for treatment, red light for relax the month, purple light for special whitening gel H2O2+TiO2.) * Can be time, and clean the time by the key back of the machine. Light source: 4~5 W blue LEDs / 2~3W red LEDs / 1W purple LEDs. Output spectrum: 430 nm~490 nm (Blue) & 620~640 nm (Red) & 380 nm~420 nm (Purple) Voltage: AC 100~240 V 50~60 Hz 1.2A