Quote Originally Posted by COOLWHIP
ok I have 3 68 watt cfl 2700k that have 4200 lumens each
10 23 watt cfl 2700k that have 1600 lumens each
Thats a total of 28,600 lumens all 2700k spectrum
right now I have my mylar tent at 3ft x 3ft x 4ft
Assuming that 4ft is the height...

3ftx3ft = 9sqft

9x5000 = 45000 lumens

You have over half of what is considered midrange, so you should be able to get a similar or better yield than me. If you have any spare 6500k from vegging you can add these as well, it will create a broader spectrum of light which the plants will appreciate.

3ftx3ft is a small space for 8 plants though (if all of them turn out to be female, which is unlikely if you are growing from bagseed). Plants prefer about 2sqft each, mine are a bit cramped as they have 1.5sqft each, they are tangled up with each other and I cannot take them out of the cabinet. I have to use a nutrient syringe to remove the runoff.

You will probabaly end up flowering 4, but because your plants are small you might get away with flowering more (an unintentional Sea Of Green), you will just have to play it by ear and see how many you can cram in there.