A device comprising a base receptacle configured for embedding within a cavity in a pavement, having an upper end surface, said upper end surface comprising an opening, a moveable housing comprising at least one aperture and at least one light source, said moveable housing being configured to be moveably received through said opening such that a portion of said moveable housing is normally protruding above said upper end surface and can be depressed into the base receptacle by a downward force, a resilient suspension membrane mounted to said base receptacle and extending inwardly from a perimeter of said opening, said resilient suspension membrane being configured to receive said moveable housing, and a resilient member operatively coupled to said moveable housing, wherein said resilient suspension membrane and said resilient member are configured to jointly exert an upwards biasing force which returns the moveable housing to said normally protruding position.