| 摘要 |
An electrical power generating device particularly adapted for mounting onto a rotary wheel can automatically produce electrical power to get LED lamps secured to the surface of wheels illuminated. The power generating device is an electrical motor having an output shaft and is fixed to the interior of a box. A speed retarding device including a counterweight or a wind operated wheel having a plurality of wind catching blades is attached to the output shaft of the motor so as to keep the shaft relatively still with respect to the motor rotated along with a rotating wheel. So, the motor serves as an electric generator producing electric power to get LED lamps illuminated. The LED lamps can be electrically actuated by way of such a power generating device on a vehicle moving on road.
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