Now, you don’t need to worry about the dark night when the power is interrupted. This is a circuit diagram based on a white LED. When the mains power fails, the emergency light will automatically turn on. This circuit will assist you in protecting your valuable documents and jewelry from intruders or theft. All you need to do is position this circuit in front of the locker or beneath the mat so that when an unfamiliar person walks over the switch, the circuit activates and an alarm sounds. The circuit's key advantage is that they may be suggested in two places at the same time, as two distinct switches make two different noises.