A twinkle bulb light set includes, alternately from one end of the light set to an opposite end of the light set, a plurality of standard bulb sockets, each configured and dimensioned to operatively receive a standard bulb, whether a steady burning bulb or twinkle bulb, and at least one fuse bulb socket configured and dimensioned to operatively receive a fuse bulb. The valvulotome device further includes a handle operatively associated with the deployable assembly through a catheter by the handle in a one-handed operation for deploying the guide fins and cutting blades of the deployable assembly having respective outer diameters at each deployment position. By this constitution, it becomes possible to cause the movable portions of the linear actuator to quickly stop while eliminating the necessity of giving a braking force by an electric or mechanical brake or the like and of providing a configuration designed for giving a braking force in a reliable manner such as one provided as a measure against heat generation. The secondary absorbent layer absorbs the fluid and acts as a holding reservoir until the primary absorbent layer can absorb the fluid held in the secondary absorbent layer. More particularly, the fastener module enables engagement and disengagement of control cords from panels of a window covering.