Abstract: A decorative lighting device includes a miniature incandescent lamp, a plug-in base, a partition member, right and left urging lugs, and a housing. The miniature incandescent lamp is held in the plug-in base. The partition member is integrally formed with a bottom wall of the plug-in base. The right and left urging lugs are disposed on opposite sides of the partition member. The housing includes an upper end wall having an opening for passage of the plug-in base, a lower end wall having a slot adapted to receive two electric leads, and an inner intermediate circumferential wall communicating the upper and lower end walls. When the plug-in base, together with the miniature incandescent lamp, is inserted into the housing, lead-in wires of the miniature incandescent lamp and the electric leads will be firmly clamped between the intermediate circumferential wall and the right and left urging lugs to ensure good electrical contact and to prevent entrance of rainwater thereinto.

Abstract: A decorative lighting device includes a miniature incandescent lamp, a plug-in base, a partition member, right and left urging lugs, and a housing. The miniature incandescent lamp is held in the plug-in base. The partition member is integrally formed with a bottom wall of the plug-in base. The right and left urging lugs are disposed on opposite sides of the partition member. The housing includes an upper end wall having an opening for passage of the plug-in base, a lower end wall having a slot adapted to receive two electric leads, and an inner intermediate circumferential wall communicating the upper and lower end walls. When the plug-in base, together with the miniature incandescent lamp, is inserted into the housing, lead-in wires of the miniature incandescent lamp and the electric leads will be firmly clamped between the intermediate circumferential wall and the right and left urging lugs to ensure good electrical contact and to prevent entrance of rainwater thereinto.

Abstract: A decorative lamp assembly includes a lamp holder which has a substantially cylindrical seat with an upper end, a lower end and an elongated cylindrical wall extending from the upper end to the lower end. A lamp is connected securely to the upper end of the cylindrical seat and has two electrical wires extending outwardly through the cylindrical seat. A lamp casing has a bottom access opening. A lamp-casing holder has a one-piece hollow body which includes an inner cylindrical wall that is sleeved rightly around the cylindrical seat, and an outer cylindrical wall that is concentric with the inner cylindrical wall an annular groove for receiving tightly the annular neck portion of the lamp casing when the lamp casing covers the lamp.