Pardon my ignorance but Does night mode come on for "night" automatically? I have an apex controller so I guess I will have it running them. They are just plugged in on their own right now. Just got them today. Should they just be turned off at night or will the apex drop the power right down for me? If I only plug the "master" RW15 into the apex will the "slave" do the same thing even though it's not plugged into the apex?