Act on " it is a purpose with demand " development principle, I manage technical personnel opens the newest function that gives out electric warning apparatus: Cut off the power time. After this function can come true to be cut off in 220V power source, break electric warning apparatus to start time, after 220V power source puts through, stop to time, the client can pass the understanding with very intuitionistic clock to break (stop) electric time, in order to make corresponding step.