I will give it some thought. I'm not familiar with actinic bulbs.But after research and what some have experienced, it helped greatly with acros. The actinic dose not have much par,BUT,alot of PUR that helps something, LOL.This is why we need to figure out if actinic bulb will help.I got room to add 2 more t5 bulbs. Front and back. Was considering also a purple+ and actinic. ?