Efficient and energy-saving lighting device for smart building

The intelligent building efficient energy-saving lighting device comprises a fixing plate, supporting plates are fixedly connected to the two sides of the bottom end of the fixing plate, the two supporting plates are rotationally connected with a rotating shaft through bearings, the right end of the rotating shaft penetrates through the inner side of the supporting plate on the right side, and a gear is fixedly installed at the right end of the rotating shaft; and the outer side of the supporting plate on the right side is fixedly connected with a driving mechanism. According to the LED lamp tube, the fixing blocks, the fixing bolts, the rotating blocks and the first clamping grooves are used in cooperation, people can conveniently assemble and disassemble the LED lamp tube, the fastening springs, the second clamping grooves and the clamping blocks are used in cooperation, people can conveniently assemble and disassemble the lampshade, the driving mechanism and the gear are used in cooperation, and therefore