Abstract: A lighting device includes a housing, an elastic reflective element, a light-emitting unit, and a switching module. The elastic reflective element has a resisting surface and a reflective surface opposite to each other. The light-emitting unit is configured to provide an illumination beam to the reflective surface. The switching module is configured in the housing. When the switching module has not pressed against the resisting surface, or when the switching module has pressed against the resisting surface but has not yet transformed the shape of the reflective surface, the reflective surface assumes a first state, and the illumination beam reflected by the reflective surface has a first light pattern. When the switching module presses against the resisting surface and transforms the shape of the reflective surface, the reflective surface assumes a second state, and the illumination beam reflected by the reflective surface has a second light pattern.