I forgot to mention, the idea behind my grow is to keep costs low (it costs me $17 a month on the flower side, and $14 a month on the vegg side). I will soon be set up to run 1 in vegg, and 2 in flower at all times, so I can harvest 1 per month ov average. I also had the added benefit of having the sockets, wire, and plugs already. I also was able to pick up 26 watt 2700k cfls for a cheap price, 2 for $1. I bought 30 of them. I also think it is important to keep in mind that with fluorescent, cfl or regular, you can get them pretty close at times. Keeping that in mind, the advertised lumens of a light is measured at 1 foot. the closer you get, the more lumens the plant will receive. SEE CHART. I run my cfls about 4 to 6 inches away during vegg, and 8 to 10 during flower. Any closer and my girls hairs were burning. I thought I was putting out 17,500 lumens, but in reality, she is getting more like 27,000, and spread out all over her lighting up the tops and sides, not just on the top.
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But this is just one mans opinion.