I have spotlights turned on by a lux detector (turns them on at nightfall - 600w 230vAC). I want to turn them off 4 hours later. What set or module does the job without having to push a button every day. 
I have spotlights turned on by a lux detector (turns them on at nightfall - 600w 230vAC). I want to turn them off 4 hours later. What set or module does the job without having to push a button every day.