Illumination devices are provided. In one aspect, an illumination device includes a housing including a plurality of electrically conductive leads. The illumination device also includes a lens unitarily formed as one-piece with the housing and a first light source electrically coupled to at least one of the plurality of electrically conductive leads and positioned behind the lens. The first light source is adapted to emit light of a first color. The illumination device further includes a second light source electrically coupled to at least another one of the plurality of electrically conductive leads and positioned behind the lens. The second light source is adapted to emit light of a second color different than the first color. The illumination device is adapted to be coupled to a surface of a substrate and emit light through the lens generally parallel to the surface.