Autocob x 4

I purchased 5, 3500k toward the end of my second grow, I just used 2 cobs, just after 2 days, there was a change in my buds. They just looked like they woke up and tric's were swollen. Now using all 5 know it's over kill on a 7 gallon container. I am having to move the lights up every 2 days. This plant is in its mid 5th week, no LST or Scrog, the amount of Bud sites are still fantastic. Plant is little over 2 1/2 ft tall and just huge. The light from these cobs reach far into the plant. On a 18 - 6 light schedule