Sorry dude, with Thanksgiving going on and all I may have confused myself.
Ok. The more lumen's the better. But you want to use a white/veg. light with 20/4 light cycle. That type of light will make the auto's preform their best. All the way through. If I've confused u some where, I apologize.
I may be off line for a while. So if I don't respond, sorry, but I'll be back soon. Later dude, and good luck.