Newbie making lighting decisions

Ive done a lot of reading here to prepare for my small first time grow. In regards to lighting, I decided to go floro.

My rationale is that while I understand HPS is superior, it is also more expensive, requires more equipment and produces more heat. For a small first time grow in a small space I want to keep things less costly/hot.

As mentioned, this left me looking at floros for a small grow (3ish plants) in a small space.

From what i understand, minimum lumens are 2-3k for each sq foot. According to this post:

https://www.rollitup.org/general-marijuana-growing/723-things-know-about-lighting.html

Floros emit 60-70 lumens per watt. It doesn't mention cfl but it seems to be about the same. Is this correct?

When I initially got supplies, I bought two 75 watt 4' floros with bulbs for growing. So if I understand correctly I currently have 10,500 lumens?

At the time I thought this would be superior to building the same lumen count with 6 or so cfl lights, so I didn't even look at them.

However, this post:

https://www.rollitup.org/indoor-growing/8513-cfl-vs-floro-vs-hps.html

makes me think that cfls might be a much better idea.

Can someone explain to me the merits of these small cfl bulbs? Will my results be better with them?

I cant tell you much about CFL, but I can tell you, for whatever its worth, when I 1st started I used a 250 watt HPS for a small opp. I never had heat trouble and flowered about 9 plants very well, nice tight buds, not huge buds, but good density.

Here's a simple example of my setup. I've a homebuilt tube that's 15 1/2 inches diameter, and 38 inches tall. Current running 3 26w cfl for veg, will use 3 42w cfls for flower. The 42w lumens are quoted to be 2700(actual varies a bit, doesn't differ to much from other fluro's). That is 8100 lumens in a little more than a square foot cross section. Packing that many lumens with fluro tubes would have been damn tough, not sure if possible. This is just 1 simple example, the real experts probably can give a more exact description.

growone