Foldable advertising board

A foldable advertising board, comprising a first light board and a second light board that are hinged to each other at one side respectively, top surfaces of the first light board and the second light board being respectively embedded with a plurality of light beads;

• wherein
• a right side of the first light board is formed with a protruding segment protruding outwardly at a middle segment thereof, and front and rear edges of the protruding segment are respectively provided with first bushings that are fitted with each other coaxially;
• a left side of the second light board is formed with a concave segment fitting with the protruding segment at a middle segment thereof, and front and rear edges of the concave segment are respectively provided with second bushings that are rotatably fitted in the first bushings;
• a side edge of the second light board is provided with a wire hole, a wire and a switch, the wire penetrates into the second light board through the wire hole and into the first light board through the first bushings and the second bushings, the light bead is connected to an external power supply through the wire, and the switch is connected in series with the wire to form a power supply switch.