A light emitting device for a drive of medical instruments and/or hand pieces contains a carrier device consisting of at least one first layer and at least one second layer; and a luminous diode arranged on a surface of the carrier device pointing in a direction of light emission; the at least one first layer of the carrier device containing a conductive layer for power supply to the luminous diode; and the at least one second layer of the carrier device containing a thermal abstraction layer for carrying off the radiated heat of the luminous diode.