| 摘要 |
PURPOSE: A bulb is provided to engage a bulb with a socket by pushing the bulb into the socket and separate the bulb from the socket by pulling the bulb. CONSTITUTION: A bulb comprises a glass portion(310), a terminal(320) for inputting the electrical energy of the lower end of a base, and a protruding portion(320). The protruding portion(320) is made of a conductive material. The base of the bulb comprises a protruding portion(410) which is made of a metal and a base body(420). The protruding portion(410) is engaged with a filament(430) to transfer electrical energy to the filament(430).
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