Apparently one of my LED lights stay on very slightly during the dark hours. I just switched to flower schedule and noticed a slight glow long after the timer shut off the lights. My theory is that the LED's take so little power that they may glow with what the electric co. calls "phantom power". Power being used by appliances, etc, while they are turned off. There are companies that specialize in tracking down phantom power in large commercial buildings, saving a lot of money. And we all know the importance of true darkness during flowering. Now what? Any ideas on this or the outcome? I spotted the glow during my first 12 hour darkness shift.