... shutdow time15secondsInduction modelow frequency,application- specific card(Temin card--E5557,E5567,EM) for powerLED ... 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 ... ,taking out the card, the main power will be automatic off in 15 seconds,it ...