Wattage to grow space size

I have 2 cabinets that are 24"w x 15"d x 64"h. The one is for veg and clone. The other is for flower. The shelves can be placed where ever, so the veg and clone cab are split into 3 sections. 2 for veg and 1 for clone. I'm using all cfls for this cab. My question is for the flower cab. If there are 2 sections which would be 24"w x 15"d x 32"h, would a 100w HPS for each section be enough for a good yield, or would 150w be needed? Any help would be great. Thank you!!! FYI I have done closet grows with 40w 4ft tubes, but now I'm trying to step up my setup.

i've never used a 100 but the 150 HPS is a great light. I say go for the 150.

But do I have enough space to allow for a 150w? With the fact that I only have 30", minus pot size, so prob. only about 20" or so for total plant height. So I think I might have to go to SOG style due to space and setup. I have more height than depth, but I do have a lot of length, so more cabs would be okay. Thanks for your help.

If anyone has any advice that might be helpful, please offer it up. Thanks!

Unfortunately this table doesn't have a 100watt but it explains the Lumen output for 150>

How many plants were you thinking of growing per HPS?

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Well with the 2' x 1' area I'm thinking I'm gonna have to go with a SOG style. Which means I'm thinking of going with a few mothers in my veg cab, so I can make several clones, and go right to flowering. With this in mind maybe six per flowering area, which would give me 12 total. 6 per 1' x 2' area, due to I only have the approx. 20" of height in each section of the flowering cab. Mainly because I don't think I'll have enough area to height to flower 2 in each spot at a time or even 1 in a 1' x 2' x 5' area if I went with the same cab but didn't section it. I might be wrong though, again because I've done closet grows with fluoros. and I'm now going to a cabinet grow, due to I'm moving and I'll have an attic and not enough closet space. So any help on choosing a flowering cab setup would be great. And thanks for the chart, it helps!

I'm also worried that if the bulb is too strong and too close I'm gonna burn them. I keep reading that about the HPS or MH and I know with the fluoros. I can get a way with that same of a space without fear of this, but I want a better yield, which means time to go to HPS. But looking at your chart I looks as though I don't have to worry. I should be able to keep them a few inches away and be okay, as well as get some serious light on them, and still get the bottom branches with plenty of light as well.

I would go for a 150watter at least. They wouldn't be all that more expensive and I can keep my 250watter about 6-7 inches from the plant. I'm not sure if a 100 watt would be enough for 6 plants. The more ventilation you have, the closer you'll be able to get it.

I would use the 150w hps. If you are more comfortable with fluoros, a 6x24w T5 fixture would light that space about as effectively. The bulbs are only slightly warmer than your cfls. hps is cheaper tho.

Thanks for the help, but I think I need to go with the HPS, cuz the yield should be better. Not that mine we're bad with the fluoros., but I think it'll improve it. Plus like I said I'm going from a closet that was 8' x 8' x 6' tall, and now I'm going to a new place and it's gotta be stealth. So I'm thinking if I gotta switch it up, I might as well step it up a little. So I guess I'm going with the 150w and several small girls in a good rotation of every month to keep it flowing nicely. So thanks for your help guys. Do any of you have a good link or info on how to get the components to build a 150w fixture. Something that I can get at a good light and elec. store. Any help would be awesome. Thanks again!!!!