The simple, dry design includes a number of high-tech technical elements and innovations, stepless dimming from 7000lux-32000lux illumination; dual control points to meet the needs of different operating habits. The innovative ergonomics principle is reflected in the most labor-saving and most convenient selection of infrared sensor switches. The handle is designed to be separated from the body and the sleeve, and the glove can be sterilized at a high temperature (135 ° C), which completely solves the trouble that the handle of the oral lamp can not be disinfected and cross-feeling is easy. The reflector design meets or exceeds all optical parameters such as the shape and size of the spot, the uniformity of the spot illumination, the uniformity of the light and the intensity of the light, and the shadowless effect.