The surgical shadowless lamp is used to illuminate the surgical site to best observe the low-contrast objects at different depths in the incision and body cavity. Since the head, hands, and instruments of the operator may cause interference shadows on the surgical site, the shadowless lamp should be set to eliminate shadows as much as possible and minimize color distortion. In addition, the shadowless lamp must be able to work continuously for a long time without emitting excessive heat, because overheating will make the surgeon less comfortable and dry the tissue in the surgical area.

The heat generated, such as being in the cover of the shadowless lamp fixing device, will insulate the wiring, causing meltdown or breakage; the resulting short circuit may damage the shadowless lamp and put the patient in a dangerous situation. Therefore, the fixture must be designed to prevent heat build-up. The use of an open structure to dissipate heat, and the use of fans to facilitate airflow are two methods to control the heat build-up in the fixed device. Some sealed shadowless lamps can promote heat conduction and flow to the surface. These clothing surfaces can receive heat and affect The movement of the shadowless light may be a big problem after the top work of the non-scene light is positioned, and sometimes it even needs to be repositioned. Some products use magnetic locking to prevent this phenomenon. So far, what method has been determined to quantitatively evaluate this movement. Dirt or fingerprints on the quartz haloxel bulb will cause the bulb to break prematurely or lose its color. These bulbs are packaged to prevent direct finger contact when placing the lamp holder; if you have to hold the bulb, you need to use a clean cloth or sleeve; when the bulb cools, wipe off and cut fingerprints. The shadowless lamp must be kept clean to prevent dust from falling into the surgical site when moving. The shadowless installed on the track must pay more attention to cleaning problems, because the track is concave, it must be lubricated, easy to accumulate dust, and difficult to remove. The advanced track design is to add a shield to prevent dust from falling on the surgical site. When using it, it is necessary to prevent the operation shadowless lamp from colliding with the operating table or other operating room equipment, so as not to cause the support mechanism to break because these cracks may cause the fracture of the support mechanism. In addition, be careful not to burn the patient. There are reports that there have been patients who were burned by the shadowless lamp with the thermal protection filter removed, and patients were burned by two shadowless lamps focusing on the same part.