| 摘要 |
An improved structure of a Christmas bulb set having one bulb and one bulb holder as a unit, within, each output end of a pair of conductor filaments of the bulb being compressed into a square pillar shape; a hole penetrating through the center of the bulb holder allowing both ends of the square pillars to complementary attached to each other; and both positive and negative terminals connected with a wire at their lower ends being inserted into opposite side walls next to the hole characterized by that a circumferential groove being provided to the upper part of the square pillar of the bulb, the filaments being curved by compromising the opposite walls of the square pillar; a flange merely to receive insertion by the bulb groove being extended inwardly from the upper circumference of the hole on the bulb holder with the inner diameter of said flange not greater than the outer diameter of the circumference of the bulb groove to allows direct conduction of the electric circuit with the bulb well secured and prevented from water permeation into the connection end.
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