Electronic device

An electronic device of a lighting system mounted to a ceiling of a toilet booth comprising:

• a detection unit configured to detect movement of a person within the toilet booth;
• wherein when the movement of the person is detected, the lighting system emits light toward the person;
• and
• a control unit configured to, in a case where the detection unit detects a first movement of the person, control an operation unit of the lighting system such that the operation unit is changed from a first state, of not emitting light, to a second state of emitting light, and maintains the second state for a first predetermined period, wherein,
• in a case where the detection unit detects a second movement of the person for maintaining the operation unit in the second state, in a predetermined detection period spanning from before an end time of the first predetermined period until after the end time, the control unit controls the operation unit such that the operation unit maintains the second state until an end of a second predetermined period changed from the first predetermined period and directly lasting based on a time aspect of the second movement of the person,
• in a case where the first predetermined period ends and the operation unit is changed from the second state to the first state, the control unit determines whether a third predetermined period has elapsed, and
• in a case where the detection unit detects the second movement during the third predetermined period, the first state is changed to the second state and the second state is maintained for the second predetermined period.