| 摘要 |
A plug-in type AC electrical bulb apparatus comprising a bulb having being connected with elastic conductive wire extended from the tungsten and a bulb head portion having the function of voltage reduction, wherein the bulb head portion comprises a bulb seat and a copper head and a bulb recess mounted with two elastic plate corresponding to the elastic wire is provided on the seat for the adaptation of the bulb. A diode is connected in series along the conductive wire for the prevention of short circuit such that the high voltage from an alternating current source is reduced to direct current 55 V.
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