A lamp assembly adapted to be integrated into an exterior rear view mirror assembly for a vehicle including: - a housing; - an outer lens partially covering the housing to define an enclosure between the housing and lens; - a light emitting diode light source arranged in the enclosure; and - a light guide forming part of the housing, the light guide having a light receiving surface within the enclosure and a light emitting surface outside the enclosure, such that light emitted from the LED light source is received by the light receiving surface of the light guide and directed toward the light emitting surface of the light guide, such that light is output from the light guide, wherein the lamp assembly provides a cosmetic light configured to provide light output generally forward of the vehicle and a compliance light configured to provide light output over a viewing angle of at least 55 degrees in a plane, with the light guide being a compliance light guide featuring a mid-section with a reduced cross sectional area, and characterized in that the outer lens includes an opaque inner portion and a light transmissive outer portion, wherein the opaque inner portion includes an elongate opening to allow light to transmit through the outer portion with an elongated cosmetic light pipe, which is further included in the lamp assembly for guiding light from at least one light source to an elongate light emitting surface being housed within the enclosure such that the light emitting surface of the light pipe is adjacent to the elongate opening of the inner portion, and the outer lens features a cut out complementary to the mid-section of the compliance light guide, wherein when the outer lens is welded to the housing and compliance light guide to form a sealed enclosure, the mid-section nests within the cut out, wherein the lamp enclosure is weatherproof. - a housing; - an outer lens partially covering the housing to define an enclosure between the housing and lens; - a light emitting diode light source arranged in the enclosure; and - a light guide forming part of the housing, the light guide having a light receiving surface within the enclosure and a light emitting surface outside the enclosure, such that light emitted from the LED light source is received by the light receiving surface of the light guide and directed toward the light emitting surface of the light guide, such that light is output from the light guide, wherein the lamp assembly provides a cosmetic light configured to provide light output generally forward of the vehicle and a compliance light configured to provide light output over a viewing angle of at least 55 degrees in a plane, with the light guide being a compliance light guide featuring a mid-section with a reduced cross sectional area, and characterized in that the outer lens includes an opaque inner portion and a light transmissive outer portion, wherein the opaque inner portion includes an elongate opening to allow light to transmit through the outer portion with an elongated cosmetic light pipe, which is further included in the lamp assembly for guiding light from at least one light source to an elongate light emitting surface being housed within the enclosure such that the light emitting surface of the light pipe is adjacent to the elongate opening of the inner portion, and the outer lens features a cut out complementary to the mid-section of the compliance light guide, wherein when the outer lens is welded to the housing and compliance light guide to form a sealed enclosure, the mid-section nests within the cut out, wherein the lamp enclosure is weatherproof.