String lamp and string lamp structure

A string lamp, comprising a lamp holder, a lamp tube and a lampshade, wherein the lamp holder comprises an inner shell portion for connecting the lamp tube and an outer shell portion for connecting the lampshade;

• a first region between the inner shell portion and the outer shell portion is provided with a connection structure covering the first region along a circumferential direction of the inner shell portion;
• and the connection structure, the inner shell portion and the outer shell portion are integrally formed;
• wherein a first positive electrode portion and a first negative electrode portion are provided on the lamp tube, a first opening is provided on a side of the inner shell portion facing the first positive electrode portion, a second opening is provided on a side of the inner shell portion facing the first negative electrode portion, a first metal member is provided within the first opening, a second metal member is provided within the second opening, the first metal member extends from the first opening to the first positive electrode portion and is electrically connected to the first positive electrode portion, and the second metal member extends from the second opening to the first negative electrode portion and is electrically connected to the first negative electrode portion.