Electrodeless dichromatic flickering bulb and light-emitting-diode light string

An electrodeless dichromatic flickering bulb, comprising:

• a built-in chip, a first light-emitting-diode element and a second light-emitting-diode element;
• the built-in chip comprises a first input terminal, a second input terminal, a first output terminal and a second output terminal, the first input terminal is electrically connected to the first output terminal, and the second input terminal is electrically connected to the second output terminal;
• an anode of the first light-emitting-diode element is electrically connected to the first output terminal, a cathode of the first light-emitting-diode element is electrically connected to the second input terminal, an anode of the second light-emitting-diode element is electrically connected to the second output terminal, and a cathode of the second light-emitting-diode element is electrically connected to the first input terminal;
• and
• when the first input terminal is powered on, the first light-emitting-diode element emits light, and when the second input terminal is powered on, the second light-emitting-diode element emits light.