Thought I'd give anyone who is thinking about getting this light a few tips.... now this is in a 4x4 tent climate controlled environment.... 100% on Fullspec is way to much light.. plants seem to love it between 70 and 85%... both red and fullspec. I start with with the higher percent on full spec, when i added in the red i balanced the two out around 70%. helps with heat controll..When I start going above 85% I start burning them. In all I love this thing. Would love to add the controller to it. But it's kinda fun tinkering with it. I couldn't find much info about this light when I bought it. So...This info is from my personal opsies..file I hope this helps take a few corners off of the perfebial wheel for ya.