Because the induction switch is installed on the mirror cabinet, when someone approaches, the induction switch will induce and automatically light the led lamp for illumination. In addition, the LED lamp is hidden, and the light source is exposed by using the principle that glass is transparent and can be refracted. Because the light source of LED lamp is a point light source, the exposed light source is like a star. When people leave, the LED light can be automatically turned off, which is very convenient to use and eliminates the problems of electric shock and power waste caused by forgetting to turn off the light.