Back in the day I somehow managed to squeeze an ounce out of a 70w hps and a couple CFL (back when they were really hot, and not very efficient). I guess i've got 3 grows under my belt before my shed grow (4th)
1st - 70w HPS and probably 50w of CFL. Yield was somewhere around an oz.
2nd- Went all in, 1000w hps (magnetic ballast) - 4 plants - Never got to finish. Busted. Learned to never grow somewhere you don't own. 2 felonies as a result.
3rd- 440w of PLL (bent t5's) in a 44 gallon trash can. My third grow ever was a total disaster. I had almost 4 ounces of airy, non active bud. :/ I chopped too early, and paid for it. Ya live and learn.
4th- Shed grow, ongoing.