By placing a magnetic keyring in the socket, power is supplied to the hotel room and the power is disconnected after a few seconds. The economizer consists of a magnetic socket, a magnetic key chain, two high power relay circuitry with time delay for lighting control and air conditioning, and a magnetic balcony door trap.
The key ring is made of ‘solid’ European bronze, on which the logo of the hotel is engraved and can be nickel-plated or gold-plated. The magnetic socket is installed near the entrance of the room and has a light to illuminate.
The economiser is easily installed in existing electrical installations, without any special temperament, and its operation is now safe (12V D.C.) and completely silent.