A bicycle lighting device configured to be mounted to a bicycle includes a
lamp case, a control case and a mounting unit. The lamp case has a light
emitting diode arranged therein. The control case is connected to the
lamp case by a hinge. The control case is configured to clamp onto a
handlebar. A control circuit for controlling the light emitting diode is
installed inside the control case. The mounting unit is for attaching the
lamp case and the control case to the handlebar in such a fashion that
the lamp case and the control case are drawn close together.