... +50 2 .insert for power 3.life span more than ... insert card for power switch adopts general card for power, it is ... insert card for power switch is installed ... the card for power, it will instantly connect the main power, all the ... card, switch will be Automatic Power Off within 15 delay seconds. ... and safe. if you need power again, just reinsert the card ... out the card, the main power will be automatic off in ...