T5's are fabulous. I use them for cuttings, moms and vegging. Unlike t12's you can't put the T5's as close. Your plants can grow into T12s without burn. The
t5s put out much higher intensity than reg. flouros. Put a light meter 1 foot below bulb and you'll see 10,000FC. A regular flouro will put out about 2000FC at that distance.