Ultra-slim hollow mesh design, barrier-free laminar air flow through the ultra-slim hollow mesh design, which will meet with the requirements of modern purified laminar flow operating room. During a long operation, the surgeon requires a strong, clear, non-glaring light to reach comfortable visual effect . The optical design of this product fully consists with the physiological structure of the eyes to ensure maximum comfort for the eyes. When the Geeta 650 surgical lamp is turned on, it is initialized to the 71% brightness that is most suitable for vision. And the brightness can be adjusted freely in the range of 5%-100%, and the doctor's eye fatigue can be compensated during the operation. The digital memory function will automatically record the appropriate illuminance, and it is no need to adjust it when it is turned on again.