Latching relays, also known as bistable relays, have become an integral part of various electrical and electronic systems due to their ability to retain their state without continuous power. Unlike conventional relays that require power to maintain their state, latching relays only need a brief pulse to switch between two stable states. This feature makes them an energy-efficient solution for many applications, including control systems, automation, and power management. In this article, we will explore the working principles, types, and applications of latching relays, emphasizing their advantages in modern electrical systems.