Abstract: A vibrating switch controlled flashing light circuit includes a vibrating switch, a battery, an integrated circuit mounted on a substrate, a plurality of lead wires and light emitting diodes, and a housing. When subjected to external forces, the circuit will be connected to cause the LEDs to generate cyclical flashes and stop flashing after a set period. After a delay of several seconds, one of the LEDs alone will flash for several seconds and stop. During the period of flashing, the circuit may refuse other actuation signals or accept them to start a new flashing period. The circuit structure may be adapted for use on clothing, luggage, rucksacks, sports shoes and equipment, etc., for purposes of identification and ensuring safety at night.

Abstract: A light emitting roller for roller skates, including a roller body having a center axle hole for mounting on a wheel axle, an annular groove around said center axle hole at an outer side, a battery chamber and two opposite through holes at said annular groove; an annular circuit board mounted within the annular groove on the roller, having a plurality of light emitting elements controlled to emit light through the through holes on the roller body, an automatic switch, an opening, two contact metal plates at two opposite sides of the opening, and a battery cell connected between the contact metal plates and mounted within the battery chamber on the roller to provide electric power supply to the light emitting elements through the automatic switch; and an annular cap mounted within the annular groove on the roller to hold down the annular.

Abstract: A light emitting device installed in the sole of a shoe, including a circuit board, a light emitting element controlled by the a circuit board to give light, a battery cell connected to the circuit board through a switch, and a steel ball moved in a curved sliding way to control the switch, wherein when the steel ball passes through the highest point in the middle of the curved sliding way as the shoe is moving, the circuit board is electrically connected to turn on the light emitting element causing it to give light.