Light-producing structure for wheeled traveling case assembly

A light-producing structure for a wheeled traveling case assembly including left and right wheels, an extendable pull handle including two lower outer ends connected to said left and right wheels two front supporting legs forward extended from a lower front of said pull handle to enable said wheeled traveling case assembly to stand stably, and a traveling case connected to said pull handle and located above said two front supporting legs, and said pull handle including left and right metal supporting bars and a handle grip transversely connected to upper ends of said two supporting bars, comprising:

• a first circuit board and a plurality of light-emitting elements provided on said wheeled traveling case assembly and protectively coated with a waterproof material;
• first conducting wires electrically connecting said first circuit board and said plurality of light-emitting elements;
• a mini generator provided to one side of one of said two wheels, such that a frictional wheel mounted to an outer end of a rotary shaft of said mini generator frictionally contacts with one of said left and right wheels;
• and
• conductors and second conducting wires electrically connecting said mini generator to said first circuit board provided on said wheeled traveling case assembly;
• wherein said conductors connecting said mini generator and said first circuit board are said left and right metal supporting bars of said pull handle.