Surgical shadowless lamps can be divided into halogen shadowless lamps and LED shadowless lamps according to different light sources. The only surgical shadowless lamp that can be called a cold light source is the LED surgical shadowless lamp.

The LED surgical shadowless lamp is based on LED as the light source. LED is referred to as light-emitting diode. It is a type of semiconductor diode that converts electrical energy into light energy. Compared with incandescent bulbs and neon lamps, the characteristics of light-emitting diodes are: low operating voltage, small current, good shock and vibration resistance, good reliability, and long life.

Now a difficult operation may take more than ten hours. During this period, if the light source system of the surgical shadowless lamp does not have the characteristic of cold luminescence, the room temperature of the operation will continue to rise; on the other hand, the lesions directly irradiated by the light source There will also be some unstable clinical factors in the organization, which directly affect the patient's follow-up rehabilitation treatment. LED surgical shadowless light just meets the requirements of long-term surgery.