An organic light-emitting diode lighting apparatus having an organic light-emitting diode lamp having a thermally conductive mounting member having a mounting surface on a first side and second light-emitting surface and a thin-film light-emitting structure adjacent the second light-emitting surface, the thin-film light-emitting structure comprising an anode, a light-emitting layer, and a cathode, and a thermally conductive mounting fixture having a thermally conductive mounting surface on which the thermally conductive mounting member is secured such that there is substantially continuous thermal contact across the mounting surface.