Welcome!
CFLs are a bear to work with. It' a pain to rig them and it can get costly to build a nice rig. That said, I still use them
I just setup a 2x2 for fun.. As suggested I'm running a 150w HPS and four 26watt CFL's for sidelighting. It's a fair amount of light for that space. It will grow weed just fine although on the low side of recommended lumens per sqft . That's 24,400 lumens over 4 sqft or 6000 lumens per foot. Not bad not great. 8000 would be better.
Another option would be a 8 bulb 2ft t5. This would kick ass in that space with 4bloom bulbs and 4 veg bulbs you could veg and flower with same light.. Just have to make sure the fixture will fit in tent.
Another option (and I'm sure I'm about to get kicked in the nuts) is a Mars 300 LED. They're around 70 bucks right now. I'm tempted to get one, but do your research on that one. Mixed reviews.
The 150w HPS plus CFL would seem like the best option, all things considered. I've grown great plants under a 150.
Current 2x2 setup minus the 150 that I haven't hung yet. (If you want instructions to build the cfl light and reflector just let me know.)
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I grew this under a 150w hps. Not too shabby.
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