The LED 5 MC can adjust the light colour as well as the size of the light field. You find more detailed information on the technology pages. Effective. Our powerful LED-technology helps keeping a cool head through an almost inexistent heat development in the surgeon's head area and wound field. The built-in laser pointer always indicates the middle of the light field and helps the surgeon to find the optimal position of the OT-light to the wound field. After a short time the laser pointer turns off automatically.