I can't remember who suggested that to me, or maybe I just made it up. Your way sounds better, having them on when no one is home, so they don't fry their eyeballs! Thirty years, must be working. I'll do that this year.I am a bit curious about that also. I have most of my lights on from 7:00 am until 7:00 pm and some until 9:00 pm. I have been doing it this way for about 30 years.