Yes, they will stay on 24/7 if I do not switch the power off. Here is the scenario, I turn the power on at night and they go full bright (manual mode), then I turn the power off for a few seconds and they stay off until dusk (one does come on earlier that the other). The power goes from the switch to the first light and then a traveler from first light to the second, so they are not truly master slave controlled but able to come on or off on their own. The issue is once they come on at dusk, they will not go off at daylight or beyond. There is a factory wiring diagram that would allow me to control both lights from the master, but if they do not go off at daylight, what is the use?