the invention concerns a disposable small - size light - emitting device comprising a light source ; an integrated electronic control module , and a power source , said electronic control module including means for reducing power consumption of said electronic module and or of said light - emiitting elements , when stored and not in use , and optionally means , reducing their inertia on being switched on , and means for switching on / off said light sources . the invention is adaptable and capable of being integrated in all types of disposable light - emitting articles , for fun or not such as for instance glasses , lighters , decorative objects .