Endoilluminator comprising: - an LED chip (315, 415) and - a rod-shaped or tube-shaped body comprising a proximal end, a distal end, at least one distal hollow portion, which starts in front of the distal end and reaches up to the distal end, and a supply portion, which starts at the proximal end and reaches up to the distal hollow portion, wherein - the LED chip (315, 415) is arranged in the distal hollow portion of the rod-shaped or tube-shaped body and supplied with power by way of the supply portion, - a converter phosphor is arranged between the LED chip (315, 415) and the distal end of the rod-shaped or tube-shaped body, or at the distal end of the rod-shaped or tube-shaped body, the converter properties of which converter phosphor being selected in respect of the light emitted by the LED chip (315, 415) in such a way that it converts the light emitted by the LED chip (315, 415) into light with a desired wavelength distribution, - the supply portion has, at the end thereof facing the distal hollow portion, a contact arrangement comprising a first contact (323, 423) and a second contact (342, 425) for the LED chip (315, 415), characterized in that, - in relation to the supply portion, the first contact (323, 423) is a central contact (323, 423) and the second contact is an edge contact (342, 425), wherein the edge contact surrounds the central contact in a ring-shaped manner, - the LED chip (315, 415) is arranged on the central contact (323, 423) in an electrically contacting manner and connected to the edge contact (342, 425) by way of a bond wire (341, 441), and - the rod-shaped or tube-shaped body has an external diameter of no more than 1 mm. - an LED chip (315, 415) and - a rod-shaped or tube-shaped body comprising a proximal end, a distal end, at least one distal hollow portion, which starts in front of the distal end and reaches up to the distal end, and a supply portion, which starts at the proximal end and reaches up to the distal hollow portion, - the LED chip (315, 415) is arranged in the distal hollow portion of the rod-shaped or tube-shaped body and supplied with power by way of the supply portion, - a converter phosphor is arranged between the LED chip (315, 415) and the distal end of the rod-shaped or tube-shaped body, or at the distal end of the rod-shaped or tube-shaped body, the converter properties of which converter phosphor being selected in respect of the light emitted by the LED chip (315, 415) in such a way that it converts the light emitted by the LED chip (315, 415) into light with a desired wavelength distribution, - the supply portion has, at the end thereof facing the distal hollow portion, a contact arrangement comprising a first contact (323, 423) and a second contact (342, 425) for the LED chip (315, 415), - in relation to the supply portion, the first contact (323, 423) is a central contact (323, 423) and the second contact is an edge contact (342, 425), wherein the edge contact surrounds the central contact in a ring-shaped manner, - the LED chip (315, 415) is arranged on the central contact (323, 423) in an electrically contacting manner and connected to the edge contact (342, 425) by way of a bond wire (341, 441), and - the rod-shaped or tube-shaped body has an external diameter of no more than 1 mm.