What type of lamp is an EDR, used on a type of medical testing equipment in Japan?

DER lamps are a large class of type cold light source lamps, you want to specifically depends on what equipment is used on. Gastroscope, operating microscope, and other equipment is different. It is best to look at all his models. But I feel that the general use of 24V more, have not seen the use of 20V. You take a closer look at the model.