The relay offers a number of pragmatic value-added features that make it an essential to regulate the flow of electricity. On one hand, it increases security: with the ability to detect electricity variations (short-circuits or overloads), the power is automatically turned off, preventing damage to appliances and reducing electrical fires. And, secondly, it increases the life of other connected devices by protecting them from voltage spikes or fluctuation. Thirdly, it boosts energy efficiency by preventing unnecessary power from being used. In addition, relays are the way to provide remote control and make a lot of electric processes automatic enabling operations to be smoother and time-effective. Relays are even so tended to be used due their diminutive size, and cost effectiveness with a broad prospect of uses that require electrical control.