I don't think the distance is in relation to the spots, I was just curious. With my Mars Hydro LED I had issues with the tops getting too close after stretch on my first grow. If you can't move it any higher in your tent I can foresee it becoming an issue after you flip 12/12.The LED i am using is the VIPARSPECTRA Reflector series 300W LED Grow Light from amazon, it's about 6 inches from the tops right now although it had been closer the other day. I don't have much height left in my grow tent to be able to raise it much higher, so if the distance is a problem i could use some advice on what to do there. Thanks very much!