An E26 plastic lampholder, comprising a housing, a plastic bracket, a plastic threaded ring, a positive electrode plate and a negative electrode plate, characterized in that the housing is made of a plastic material and has an opening bottom inwardly penetrated to form an accommodating space, two latch slots symmetrically formed at an inner top of the housing, two wire plug slots formed on both sides of a top of the housing respectively and communicated with the latch slots separately, and a vertical shallow groove concavely formed on an internal wall of the housing;
- the plastic bracket is made of a plastic material and comprises a horizontal roof portion and two elastic board parts extended from both sides of the horizontal roof portion, and the roof portion is coupled to the top of the housing, so that the two elastic board parts are slantingly extended along both sides of the housing respectively;
- the plastic threaded ring is a threaded notch integrally formed on an internal wall of the housing and the plastic threaded ring breaks its extension at the shallow groove and recurs after crossing the shallow groove;
- the positive electrode plate is made of an electrically conductive material and has a conductive protruding portion which makes an are turn of substantially 180 degree after extending for a small section and then bends upwardly to form a vertical wall after extending for a small section, and a stop plate is stamped on the vertical wall, and an upper end of the vertical wall is turned in the opposite direction and extended to form an slantingly installed electric connection plate, and a latch recess is stamped at the front end of the electric connection plate, and the positive electrode plate is accommodated in the accommodating space of the housing, so that the electric connection plate and the vertical wall enter into one of the latch slots, and the latch recess of the electric connection plate is aligned precisely with one of the wire plug slots, and the stop plate on the vertical wall abuts against the latch slot wall to stop and position the positive electrode plate, while the conductive protruding portion on the positive electrode plate is extended to the center of an upper portion of the accommodating space;
- the negative electrode plate is made of an electrically conductive material and has a conductive bent portion which is bent and extended for a small section after being stretched upwardly, and then further bent upwardly to form a vertical wall, and a stop plate is stamped on the vertical wall of the negative electrode plate, and an upper end of the vertical wall of the negative electrode plate is then turned in the opposite direction and extended to form a slantingly installed electric connection plate, and a latch recess is stamped from a front end of the electric connection plate of the negative electrode plate, and the negative electrode plate is accommodated in the accommodating space of the housing, so that the electric connection plate of the negative electrode plate and the vertical wall enter into another latch slot, and the latch recess on the electric connection plate of the negative electrode plate is aligned precisely with the other wire plug slot, and the stop plate on the vertical wall of the negative electrode plate abuts against the latch slot wall to stop and position the negative electrode plate while a plate disposed on the negative electrode plate and at a position where the conductive bent portion is disposed extends downwardly and stays in the shallow groove of the housing.