A holder having a mistake-proof structure includes a holder body, two conductive plates, a rotatable fixing element and an installation fixing element. The holder body has a top hole, a central post, and a central recess. The central post is disposed in the central recess. The conductive plates are disposed in the holder body. The rotational fixing element is rotatably connected to the central post and has an extending portion and two through holes disposed opposite each other. The rotational fixing element is rotatable to align the through holes with the top hole. The installation fixing element passes through the top hole and the through holes.

Disclosed are a string lamp and a string lamp structure. The string lamp includes a lamp holder, a lamp tube and a lampshade; the lamp holder includes 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. The first region is provided with the connection structure, and the connection structure, the inner shell portion and the outer shell portion are integrally formed, thereby reducing the difficulty of a manufacturing process, and also enhancing the stability of the overall structure of the string lamp.

The present disclosure provides a stage lighting apparatus with adjustable lighting properties and an adjustment method therefor, and relates to the field of stage lighting apparatuses and enables convenient switching between two lighting states. The apparatus comprises a base, with a support frame fixedly connected to an upper end of the base. Two ends of the support frame are movably connected to a hemispherical shell A via rotating shafts. One side of the hemispherical shell A is snap-fitted to a hemispherical shell B. A rotating mating post B is movably disposed at lower ends of the hemispherical shell A and the hemispherical shell B. A servo motor is fixedly connected to a middle portion of the support frame.

The present disclosure provides a stage lighting apparatus with adjustable lighting properties and an adjustment method therefor, and relates to the field of stage lighting apparatuses and enables convenient switching between two lighting states. The apparatus comprises a base, with a support frame fixedly connected to an upper end of the base. Two ends of the support frame are movably connected to a hemispherical shell A via rotating shafts. One side of the hemispherical shell A is snap-fitted to a hemispherical shell B. A rotating mating post B is movably disposed at lower ends of the hemispherical shell A and the hemispherical shell B. A servo motor is fixedly connected to a middle portion of the support frame.