ya I just fooled around with it until it worked lol. Basically what shake said hahaha, gogogogogo. Ya bro, 30000 lumens is a lot of light. I had prolly about 30000lumens in my first cfl grow, just on one plant. I yielded 3 oz which was really nice, but thats the porblem with cfls, they dont really penetrate b.c the light strength is week already and as it travels it becomes even more week. I had to have my lights abuot 1-3 inches from the plant, basically totally surrounding the plant as if you see in the pics it had the main cola up high and alot of side bud branches half way down, that was a pain in the ass. I had about 300w of elictricity, and I can say that is why cfl growing works, and on a budget go for it, although lol I did spent like 10bucks pert 42w cfl and I had 8 PLus like 10 26watt 2700k bulbs and 8 6500k bulbs so its not reallly cheep, but you can just go out and get more light as you need apposed to spendin the money upgront on hps of mh. Iv been reading alot about light, and pretty much, you can be like oohhh these lights give out these amounts of lights, but really plants dont work on lumens lol. Its nice to know that when you have alot of them your plants will do well, but lumens was designed for humans to measure light. You should read up on your lights and ways to optimize your lighting b.c from what Iv read you may end up spending more per watt/lumen w.e than you think esp if you pay your own hydro bill. Take some time and educate yourslef cfl vs hps or i dunno. I found this neet link on hightimes L.E.D. GROW LIGHTS Read threw that. Based on this plus many youtube videos, links, other forums that L.E.D lighting will be the future of growing cannabis. Best of luck bro and if you have questions Id be glad to help. I put a bunch of pics of my light setup in my first log.