The present invention provides a self-powering warning device comprising a driving wheel and a fixing component. The driving wheel has at least one powering module and at least one light-emitting module provided therein; the powering module can generate an induced voltage for driving the light-emitting module, and the fixing component can be mutually assembled with the driving wheel and provided on a vehicle, so as to rotate the driving wheel when the vehicle travels and drive the light-emitting module, thereby generating the induced voltage for providing an electrical energy to the light-emitting module, and thus generating an illuminating and warning effect.

A bicycle light that is constructed and arranged to be supplied with input electrical power. The power can be supplied by multiple power sources, or not. When there are multiple power sources, the bicycle light includes a circuit that is adapted to deliver power to the light source from any of the power sources. The bicycle light can have an electrical power output, and a circuit that is adapted to deliver power to the light source and the power output.

A bicycle light that is constructed and arranged to be supplied with input electrical power. The power can be supplied by multiple power sources, or not. When there are multiple power sources, the bicycle light includes a circuit that is adapted to deliver power to the light source from any of the power sources. The bicycle light can have an electrical power output, and a circuit that is adapted to deliver power to the light source and the power output.

An energy-generating and mobile-charging apparatus is provided. The apparatus includes a housing including a shape featuring at least two lobes; and mounting brackets comprising at least two axles protruding from endplates of the housing for removably securing to a scooter and configured to be in contact with the front wheel of the scooter.

An energy-generating and mobile-charging apparatus is provided. The apparatus includes a housing including a shape featuring at least two lobes; and mounting brackets comprising at least two axles protruding from endplates of the housing for removably securing to a scooter and configured to be in contact with the front wheel of the scooter.

The present invention provides a generator for a bicycle which can be applied to a rim of all kinds of bicycle wheels, comprising: a rotating body 30 which is arranged to be adjacent to or to make contact with the rim 10, wherein eddy current induction magnet 35 is installed along an outer circumferential surface of the rotating body 30; a rotation shaft 62 whose one side end part is fixed at a center of the rotating body 30; and a generation unit 60 which is arranged at the other side end part of the rotation shaft 62, wherein at least a portion of the outer circumferential surface of the rotating body 30 is arranged farther outside than an outer circumferential surface of the eddy current induction magnet 35. 21