The eyes are the window to the soul, the operating room the doctor's eyes, but also to protect their eyes is not only their own needs, but also the patient's help, so protect your eyes but also obligations of the doctor's duty and operation shadowless lamp. Want to know what color perception in light color temperature to determine, for example, the light color temperature is 5600 kelvin. In 5600 kelvin temperature under human eyes feel light is white light. So in the operating room light color temperature for at least 4000 kelvin, can produce the same quality with sun light, is the color of the white light that humans see clear. So, clear the diagnosis more accurate and will not make the medical staff eye fatigue due to long time work. Wei line operation shadowless lamp can also through multilateral reflector, safe to no shadow lighting requirements, due to its perfect design and big size reflector, the homologous beams of light like the sun not only bright and no shadow, protect the eyes of the medical staff and patient safety.