... over.3.open the power ,a couple of LED at left side start timing ,the time relay's 'general' , 'ower' is connect ... left side,the time relay's 'general', 'lower' is disconnect, 'general', 'higher' is connect;at one time ,a couple of LED at right side ... scheduled time at right side,the time relay's 'general', 'lower' is connect, 'general', 'higher' disconnect; at one time left side start timing again ...