Killer Kush Fast Version under 3X ES300

I was looking at the pics I posted last week and noticed the upturned edges of the leaves on the plant-first sign of light stress. So today day 22, the first day of week 4; days 22 thru 29 of flower- I went to the grow tent immediatly and raised the lights, so they're 18" above the tallest plant and 22" above the others-I'm currently running them at 100% brightness, I had run them at 70% -judging by the watt meter they're plugged into-up to the end of week 2 of flower.