An electrical connecting element for supplying current to a light source, particularly an LED light source, that is or can be connected to a side of an endoscope, configured for introducing light into an optical system of the endoscope in a proximal region of the endoscope, and to an endoscopy system having an electrical connecting element, and to a use. Wherein the electrical connecting element is configured as a pre-formed, flat molded body having a longitudinally extended section, wherein the molded body has a curved shape at least in sections and is configured to be plugged onto an endoscope and to clasp tightly clinging thereon, wherein the molded body has electrical lines which have electrical contact surfaces in a proximal end region of the molded body in order to connect to a current supply, and electrical contact surfaces in a distal region for connecting to the light source.