The invention provides an inductive light bulb. The inductive light bulb comprises a casing structure, a setting component arranged on the surface of the casing, a light-emitting module, a light-emitting driving module, a control module, an event sensing circuit and a delay setting circuit, wherein the light-emitting module, the light-emitting driving module, the control module, the event sensing circuit and the delay setting circuit are arranged in the casing. The event sensing circuit is used to generate and send a first trigger signal to the control module when a first trigger event is detected in an area. The delay setting circuit is used to send delay information to the control module. The delay information is determined according to the operation of the setting component. The control module is used to receive the first trigger signal and send a first control signal to the light-emitting driving module after the delay of a first time. The first time is determined according to the delay information. The light-emitting driving module is used to drive the light-emitting module to emit light according to the first control signal by using the supplied electric power.