Abstract: A bicycle LED signaling device for a bicycle includes a lighting module with at least one array of light emitting diodes (LEDs), a power source, an operation interface, and a controller connected to the power source and the operation interface to receive an operation command to control the LED array to display a corresponding signal.

Abstract: A bicycle alarm device includes a lighting module, a controller, a power module and an operation interface. The lighting module is mounted on the front and/or back of a bike, and has multiple light-emitting diodes (LED) arranged on a substrate in the form of an LED array with each LED connected to the controller and the power module. The controller is connected to the power module and the operation interface to receive an operation command from the operation interface to control the LED array of the lighting module to display a corresponding alarm symbol. Cyclists can output at least one operation command to the controller through the operation interface for the lighting module to generate a corresponding alarm symbol. Accordingly, passerby and drivers of vehicles can be aware of the alarm situation beforehand and cycling safety can be further enhanced.