Abstract: A plate-to-plate connecting structure includes a first plate piece and a second plate piece. The first plate piece and the second plate piece have a first concave/convex connecting side and a second concave/convex connecting side connected with a corresponding concave/convex means; the first concave/convex connecting side has a first top edge and a second bottom edge, and the second concave/convex connecting side has a second top edge and a second bottom edge; the first top edge and the first bottom edge have top concave parts and bottom concave parts; the second top edge and the second bottom edge have top convex parts and bottom convex parts; the top convex parts are protruded into the corresponding top concave parts for forming a mutual blocking status; and the bottom convex parts are protruded into the corresponding bottom concave parts for forming the mutual blocking status.

Abstract: A plate-to-plate connecting structure includes a first plate piece and a second plate piece. The first plate piece and the second plate piece have a first concave/convex connecting side and a second concave/convex connecting side connected with a corresponding concave/convex means; the first concave/convex connecting side has a first top edge and a second bottom edge, and the second concave/convex connecting side has a second top edge and a second bottom edge; the first top edge and the first bottom edge have top concave parts and bottom concave parts; the second top edge and the second bottom edge have top convex parts and bottom convex parts; the top convex parts are protruded into the corresponding top concave parts for forming a mutual blocking status; and the bottom convex parts are protruded into the corresponding bottom concave parts for forming the mutual blocking status.

Abstract: A handheld communication device and a thin heat dissipating structure are provided. The thin heat dissipating structure includes: a heat conducting plate, having a top surface, a bottom surface and a penetrated slot, wherein an inner annular wall is formed in the penetrated slot, and convex pieces are oppositely extended from the inner annular wall and the bottom surface; and a heat pipe, received in the penetrated slot and latched and positioned by the convex pieces; a flat surface is defined by the heat pipe, the convex pieces and the bottom surface; the top surface is formed with at least one pair of punching recesses at two sides of the penetrated slot, so that two sides of the inner annular wall and the top surface are squeezed and deformed so as to form protrusions where the heat pipe is latched and positioned.

Abstract: A fastening member for firmly fasten a street light device on a lamp post is disclosed, The fastening member comprises a sleeve formed integrated with a lower cover of said street light device, an upper jaw, a lower jaw and a plurality of bolts. The sleeve formed with a plurality of first thread-holes and a first through-hole at an upper portion and a plurality of second through-holes and a second thread-hole at a lower portion therein. The upper jaw and the lower jaw are placed in the hollow of the sleeve and preinstalled in by using the bolts screwed the thread-holes of the upper jaw and the lower jaw. Another bolts screwed on the first-thread-holes and the second thread-hole in advance. While installing the light device on the lamp post, the bolts screwed on the first-thread-holes and the second thread-hole are tighten.

Abstract: An outdoor lighting device having an upper cover, a lower cover and lighting tubes installed in the lower cover is disclosed. The upper cover has three wave-like raised section formed with a multiple slits for ventilation. Each lighting tube has two end spindles formed with teeth and the lower cover has a fence built and surrounded inside to form a drainage trench and the fence has a plurality of semi-cylindrical seats with racks on two opposite sides matching with said teeth so that the projecting angle of the lighting tube can be adjusted against the racks. The lighting tubes attached with heat dissipation fins on their back side, and the plane normal of heat dissipation fins in parallel with the two end of the lighting tube.

Abstract: A LED light tube is disclosed. The light tube, along with the heat dissipation fins on it, is built as one piece. The heat dissipation fins are shaped like bats with wings extended out to have a well-defined center line, which helps create a better heat convection condition in the tube. The light tube also formed with two extended axis having a plurality of teeth formed thereon so as to provide the light tube having capability of angle adjustment about the axis of the light tube.