Abstract: A sectional lighting fixture structure includes a hollow main body, an end cap connected to and closing a rear open end of the main body, a socket connected to an inner side of a front open end of the main body for a bulb to mount thereto, and a lighting lampshade externally connected to the front open end of the main body. The main body is a lightweight metal cylindrical body having been subjected to expansion process to include two straight walls at the front and rear ends, and a middle portion having a plurality of bellow expansion joints that provides the main body with good pressure resistance. The socket is in the form of a heat-resistant insulating wool, so that heat produced by the bulb mounted thereto is not transmitted to the main body to adversely affect a normal temperature of a ballast mounted in the main body.

Abstract: A sectional lighting fixture structure includes a hollow main body, an end cap connected to and closing a rear open end of the main body, a socket connected to an inner side of a front open end of the main body for a bulb to mount thereto, and a lighting lampshade externally connected to the front open end of the main body. The main body is a lightweight metal cylindrical body having been subjected to expansion process to include two straight walls at the front and rear ends, and a middle portion having a plurality of bellow expansion joints that provides the main body with good pressure resistance. The socket is in the form of a heat-resistant insulating wool, so that heat produced by the bulb mounted thereto is not transmitted to the main body to adversely affect a normal temperature of a ballast mounted in the main body.

Abstract: A lamp holder includes a socket and a cap. The socket is provided at a rear end with a wire groove and two piercing terminals upward projected from the wire groove. The cap has a top recess to provide a bottom surface. To assemble the lamp holder to an cable, simply position the wire in the wire groove and screw the cap onto the rear end of the socket. The bottom surface of the cap and areas at two lower opposite sides of the cap evenly apply forces in the same direction to three serial points on the cable while pressing the latter against the piercing terminals, so that the cable is quickly and accurately pierced through to electrically connect to the lamp holder. The lamp holder may also be connected to a universal link, a lampshade and the like for use at different places.