the leds i am using are by growevolution.com. They can be place inches from the plants. i have mine up about 10 inches to get the best coverage on the outer edges of the tent. The nodes under these leds are better then I Have seen on any other light source. SUUUUUPER tight nodes. Vertical growth is slow but its because the nodes are so tight. even better the under 1000 watt mh. I haven seen a yeild yet from straight leds. my last harvest though I flowered with 1000w hps for the first half the grow and these leds the other half. i got over 2 pounds.

i just moved a few weeks back and it really stressed the plants out. they were light deprived for 2 days, then moved in crates in a truck, then didn't get lights really over then set up properly for another 2 days. and then spent a week dialing my tents in and getting temps situated. So what your seeing is stress damage.