A light emitting module (100, 300, 400, 430, 460, 550, 604) comprising - a housing (106, 556) comprising a light exit window at a first side of the housing (106, 556) and a base (108, 504, 558) at a second side of the housing (106, 556) being different from the first side, the housing (106, 556) enclosing a cavity (114, 564) filled with a cavity material being light transmitting, - a solid state light emitter provided within the cavity (114, 564) and being coupled to the base (108, 504, 558), the solid state light emitter is configured to emit light of a first color range into the cavity (114, 564), - a luminescent element (102, 552) being optically arranged in between the solid state light emitter and the light exit window, the luminescent element (102, 552) comprising luminescent material for converting at least a part of the light of the first color range into light of a second color range being different from the first color range, - a thermal conductor (104, 213, 406, 432, 466, 502, 506, 554) being arranged within the cavity (114, 564) and having a thermal conductivity that is higher than a thermal conductivity of the cavity material, the thermal conductor (104, 213, 406, 432, 466, 502, 506, 554) being thermally coupled to the luminescent element (102, 552) and being thermally coupled to the base (108, 504, 558), characterized in that: - the cavity material being a liquid or any one of the materials silicone, silicate, alkylsilicate, a glass or a ceramic, and - the thermal conductor (104, 213, 406, 432, 466, 502, 506, 554) is of a light transmitting material and is optically coupled to the cavity material. - a housing (106, 556) comprising a light exit window at a first side of the housing (106, 556) and a base (108, 504, 558) at a second side of the housing (106, 556) being different from the first side, the housing (106, 556) enclosing a cavity (114, 564) filled with a cavity material being light transmitting, - a solid state light emitter provided within the cavity (114, 564) and being coupled to the base (108, 504, 558), the solid state light emitter is configured to emit light of a first color range into the cavity (114, 564), - a luminescent element (102, 552) being optically arranged in between the solid state light emitter and the light exit window, the luminescent element (102, 552) comprising luminescent material for converting at least a part of the light of the first color range into light of a second color range being different from the first color range, - a thermal conductor (104, 213, 406, 432, 466, 502, 506, 554) being arranged within the cavity (114, 564) and having a thermal conductivity that is higher than a thermal conductivity of the cavity material, the thermal conductor (104, 213, 406, 432, 466, 502, 506, 554) being thermally coupled to the luminescent element (102, 552) and being thermally coupled to the base (108, 504, 558), characterized in that: - the cavity material being a liquid or any one of the materials silicone, silicate, alkylsilicate, a glass or a ceramic, and - the thermal conductor (104, 213, 406, 432, 466, 502, 506, 554) is of a light transmitting material and is optically coupled to the cavity material.