I got up this morning, the house is dark, the grow lights are out, and the door to the grow room is open about 5 inches. I see a glow coming from within. I knew the lights were out in the closet that contains the grow, so I was startled to see any light on in their room. I investigated to discover that the 2 air cleaners I have going in there have led lights on top that were casting a rather strong glow in the room. a blue, yellow and green led, the blue one being the brightest. They werent in the closet with the plants, but the closet door was open, so the glow was apparent. The girls have been in 12/12 for a week, what effect do you think these led's will have? It certainly wasn't a bright light, but it wasn't pitch black in the room either. I was able to see by the glow well enough to find duct tape in the room to cover the lights with.