See this is where I get confused I understand the hours and all that, but can I turn both on at once or should I... let's say have the veg light on 24/7 then turn the flower lights on and off every 12 hours? I can't read tutorials because all the info is something I can't take in at once it just confuses the hell out of me. lol I rather just ask what I'm confused on because I'm doing something right besides the hacking away. and are UVB bulbs any good? I had one that seemed to work real well then I read it was real bad so I returned the bulb. But it sprouted all my seeds in a day or 2 so I wasn't suee. I left the UVB bulb on 24/7 for 2-3 weeks and it grew real quick. had some bleaching on the leafs but then that stopped after a while then I switched to all CFL and don't see as much response.