COI<3.3 ，Clinical observation is an important part of medical diagnosis, along with the early detection of cyanosis. The Cyanosis Observation Index (COI) for a luminaire cannot exceed a score of 3.3. S24 insight panel is equipped with a kind of advanced LEDs which can make the panel a COI rating of 1.2 in average or lower making it optimal for detecting changes in skin tones, meeting universal standards requirement worldwidely. Patients's skin will turn cyanosis when only patients' blood oxygen saturation going very low. At the same time,it has been a dangerous status for patients.Therefore,it is super vital to observe patients’ cyanosis as early as possible. S24 insight panel covered by invisible silicone gasket,mechanical water proof design without no any influence on appearance.Anesthesiology room ,Better for anesthesiologist to observe cyanosis .Ophthalmology Department Helpful for ophthalmologist on iris examination for color distinguishing.Emergency Department Super important for the ability to observe cyanosis,cause the earlier found out,the earlier doctors & nurses can take actions to save patients.