Lighting device structure comprising: a lighting source configured to provide lighting illumination, wherein said lighting source comprises an upper lighting source and a lower lighting source which provides low beam light and high beam light separately and respectively in upper and lower position to the respective a low beam device and a high beam device, a reflector configured to reflect said lighting illumination from said lighting source, an inner lens mounted to said reflector; wherein said lighting source, said reflector, said inner lens are housed within a housing, and an outer lens assembled to said housing, characterized in that: said inner lens comprises a pair of left and right overlapping arms (402L, R) extending upwardly from a base to the left and right of the base such that the overlapping arms (402L, R) overlap with both sides of a front end of the reflector, and said inner lens is mounted to a front end portion of said reflector, wherein the overlapping arm (402L, R) has a thickness greater and wider than a thickness of the front end portion such that the overlapping arm (402L, R) includes an overlapping portion overlapping the thickness of the front end portion of the reflector; wherein said overlapping portion of said inner lens is configured to induce said lighting illumination for illuminating said inner lens; and wherein said overlapping portion of said inner lens is positioned at said low beam device; and wherein said base of the inner lens extends downwardly toward said high beam device and is configured to lead said lighting illumination to itself and to the high beam device. a lighting source configured to provide lighting illumination, wherein said lighting source comprises an upper lighting source and a lower lighting source which provides low beam light and high beam light separately and respectively in upper and lower position to the respective a low beam device and a high beam device, a reflector configured to reflect said lighting illumination from said lighting source, an inner lens mounted to said reflector; wherein said lighting source, said reflector, said inner lens are housed within a housing, and an outer lens assembled to said housing, characterized in that: said inner lens comprises a pair of left and right overlapping arms (402L, R) extending upwardly from a base to the left and right of the base such that the overlapping arms (402L, R) overlap with both sides of a front end of the reflector, and said inner lens is mounted to a front end portion of said reflector, wherein the overlapping arm (402L, R) has a thickness greater and wider than a thickness of the front end portion such that the overlapping arm (402L, R) includes an overlapping portion overlapping the thickness of the front end portion of the reflector; wherein said overlapping portion of said inner lens is configured to induce said lighting illumination for illuminating said inner lens; and wherein said overlapping portion of said inner lens is positioned at said low beam device; and wherein said base of the inner lens extends downwardly toward said high beam device and is configured to lead said lighting illumination to itself and to the high beam device.