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I have a few tomatoe plants inside under CFLs...
I'm having heat problems and am wondering how to keep them down..
Currently I have 4 26W CFLs (equivalent to 100W) running and the temps run around 78-80 degrees.. the plants are around 8 inches away from the light,, I've been reading that people use 8 -10 of these lights, just wondering how hot it gets...
I have 1 fan running at the moment....
Each additional light will increase the temp a few degrees, you'll just need to install a more powerful exhaust fan.
Don't worry man, 70-80 degrees is fine. We have like 4 or 6 42watt cfls in our room and temps stay around 70-76. Check out the room http://boards.cannabis.com/showthread.php?t=77498 you can see our ghetto intake fan. We just unplugged one of those ducts from a ceiling vent in the attic, attached another piece of ducting and ran it down to the floor then put an 8 dollar fan from wal-mart on the end and taped it in place. The fan actually works beautifully, pulls in cold air and keeps the temp perfect. Just check out the girls lovin it in the link in my sig. Also, oscilating fan that blows across the lights and the plants lets you get the lights down to about an inch or 2 away from the plants which is way better for them. Double the distance you get 1/4 the lumens. Cfls work best very close to the plant and won't burn the leaves unless they actually touch them. Move them down closer now and watch them plants swell up.