This circuit uses LED – 2 pcs. show something On – Off of or the circuit that use Battery. By LED – LED1 flasher , when open and LED2 flasher when open. While open that have charge current amount of flow through D1 go to Charge Capacitors 1000 uF , make LED1 stick or shine and switch off when Capacitors the full. Then have current which flow be Leakage Current the a little. When enough close capacitors 1000 uF discharge way LED2 , then stick tell close or cut the circuit has already. The detail is other , friends see in the circuit.
See look like of both LED display in video below: