A lighting device, comprising an immovable assembly (3, 7, 9) and a movable assembly (1, 4, 5, 6), the immovable assembly having a stationary supporting structure (3, 7, 9) for holding a light source in position; the movable assembly (1, 4, 5, 6) having a light-effect component for simulating visual effect of flame at a candle wick, the movable assembly (1, 4, 5, 6) further comprises at least a part of a driving component accommodated by the supporting structure, wherein the part of the driving component and the light-effect component of the movable assembly (1, 4, 5, 6) are such connected to each other that when the part of the driving component moves positively and/or is driven to move passively, at least a part of the light-effect component performs swing movement, the lighting device being characterized in that the light-effect component comprises a hollow, non-opaque, strip-shaped lampshade mounted around the light source, so as to form an internally-lit strip-shaped light source in which the lampshade is connected to a fixing member that serves to hold the part of the driving component in position, wherein when the lampshade and the fixing member are assembled together to form a unity, they are suspended to the supporting structure by means of an elastic member so that the lampshade of the light-effect component is allowed to perform the swing movement with respect to the supporting structure, wherein the movable assembly (1, 4, 5, 6) has a center of gravity that is located around or below an only suspending point, and wherein the elastic member is of a strip-like shape in vertical direction, so that when the elastic member has an upper end thereof suspended to a lamp board of the supporting structure and has a lower end thereof hanging the fixing member, the elastic member allows the fixing member carrying the lampshade to perform 360° free movement in the movement range defined by the supporting structure that accommodates the part of the driving component. the immovable assembly having a stationary supporting structure (3, 7, 9) for holding a light source in position; the movable assembly (1, 4, 5, 6) having a light-effect component for simulating visual effect of flame at a candle wick, the movable assembly (1, 4, 5, 6) further comprises at least a part of a driving component accommodated by the supporting structure, wherein the part of the driving component and the light-effect component of the movable assembly (1, 4, 5, 6) are such connected to each other that when the part of the driving component moves positively and/or is driven to move passively, at least a part of the light-effect component performs swing movement, the lighting device being characterized in that the light-effect component comprises a hollow, non-opaque, strip-shaped lampshade mounted around the light source, so as to form an internally-lit strip-shaped light source in which the lampshade is connected to a fixing member that serves to hold the part of the driving component in position, wherein when the lampshade and the fixing member are assembled together to form a unity, they are suspended to the supporting structure by means of an elastic member so that the lampshade of the light-effect component is allowed to perform the swing movement with respect to the supporting structure, wherein the movable assembly (1, 4, 5, 6) has a center of gravity that is located around or below an only suspending point, and wherein the elastic member is of a strip-like shape in vertical direction, so that when the elastic member has an upper end thereof suspended to a lamp board of the supporting structure and has a lower end thereof hanging the fixing member, the elastic member allows the fixing member carrying the lampshade to perform 360° free movement in the movement range defined by the supporting structure that accommodates the part of the driving component.