In today's hotels, hotel owners and hotel owners use card locks to control the movement of guests, crew and other staff. These hotels use devices called hotel power switches or hotel holder cards to control the power consumption and prevent energy wastage. This device allows hoteliers to control the power consumption of the room. These devices act like smart fuses. Until guests or hotel staff enter their room power card, they will not be able to use electricity, lighting, TVs or even electrical outlets. After inserting the card (depending on the type of power switch and the technology used in them), the power switch will release the power with the relay embedded in it, and all electrical equipment connected to this system will be usable. With radio frequency technology, this device introduces electricity to the consumer by importing Temic T5557 - 125Khz radio frequency cards. And after removing the card, the power will turn off after 20 seconds.