Lamp socket with water seal means for X'mas tree light set

A lamp socket comprising:

• a socket body having a close top end, an open bottom end defining a bottom opening adapted for receiving a bulb, a transverse wire groove at said close top end, two retaining holes in said close top end at two opposite sides of said transverse wire groove, a positive metal contact plate and a negative metal contact plate respectively mounted on the inside and having a respective pointed top end projecting into said transverse wire groove;
• an electrical wire mounted in the transverse wire groove of said socket body;
• and a socket cap fastened to said the close top end of said socket body, said socket cap comprising a downward pressure block fitted into the transverse wire groove of the socket body and pressed on the electrical wire against the pointed top ends of said positive metal contact plate and said negative metal contact plate, and two downward hooks respectively fastened to the retaining holes of said socket body;
• wherein said socket body comprises two pairs of upright rails bilaterally disposed at two opposite ends of said transverse wire groove, an annular bottom groove around the bottom opening of the open bottom end thereof, and a plurality of hook holes in communication with said annular bottom groove;
• a first rubber water seal member is mounted on the close top end of said socket body and retained in said transverse wire groove by said socket cap to seal the gap between said socket cap and socket body, said first rubber water seal member comprising two downward plug portions fitted into the two opposite ends of said transverse wire groove of said socket body, two pairs of vertical guide grooves respectively and bilaterally disposed at said downward plug portions and forced into engagement with the vertical rails of said socket body, two double-recess bearing portions respectively formed in said downward plug portions in the middle to support said electrical wire in said transverse wire groove of said socket body, two symmetrical pairs of wedge blocks respectively and bilaterally raised from said downward plug portions at an inner side above the elevation of the double-recess bearing portions and forced into close contact with the periphery of said electrical wire at a top side, and a bottom mounting groove at a bottom side forced into engagement with the topmost edge of the close top end of said socket body;
• a second rubber water seal member is mounted around the open bottom end of said socket body to seal the gap between said socket body and the bulb being threaded into the open bottom end of said socket body, said second rubber water seal member comprising a flat annular base closely attached to the open bottom end of said socket body, an upright annular flange raised from said flat annular base and fitted into the annular bottom groove of said socket body, a plurality of upright hooks respectively raised from said upright annular flange and hooked in the hook holes of said socket body, an inward annular flap inwardly and horizontally extended from said flat annular base and defining a center through hole through which the bulb is threaded into said socket body.