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. The device uses radio frequency technology to deliver power to the consumer by inserting Mifare 13.56 Mhz radio frequency cards, and after removing the card, the power will be cut off after 20 seconds.