more than its worth, i grew with cfl for my first grow, it ended up costing way more in the end and twice a day u are moving the lights around, trying to cool the giant wall of hot air (yes they run cooler INDIVIDUALLY but alot hotter when u add them all together), they lose lumens very fast and burn out all the time. I broke like 10 by accident. Glass all over. Trying to fashion reflectors and all that. Save yourself the time and money and get a digital HID setup, they are very cheap on ebay and work awesome, get the cool tube reflector and keeping it cool is a
breeze lol . 10 autoflowers, depending on the strain, 400w-600w HID is lots. If your growing 10 Mazar or Think Different or similar you may want more light than that.
If you do go with CFL use the 23-26 watt ones. they are, by far, the most efficient cfl. those big ones are a waste of money. Lumens per watt is much less. LED is still way too expensive. Plus who want to look at plants growing under purple light
peace