Intelligent insert card for power switch adopts low frequency card (Temin,E5557,E5567,EM) for power, only low frequency induction card can take the power, other cards or scripts can not, it is energy saving .Intelligent insert card for power switch is installed on the wall beside the door of guestroom, when people come, insert the card for power, it will instantly connect the main power, all the appliances (light,air-condition,television,etc.)of the room can work. when people leave, take away the card, switch will be Automatic Power Off within 15 delay seconds. it is energy saving and safe. if you need power again, just reinsert the card.1,application- specific card for power   only insert the application- specific card ,can you get the power.one card for both power and the key of the door.2,LED indicator    lighting indicator, keep pace with modern hotel and convenient to customer for night operation.3,Delay shutdown   when people leave ,taking out the card, the main power will be automatic off in 15 seconds,it is convenient and safe.