Temp question

Trying to get ready for my for my 400w switchable. How can i get some inexpensive ventilation. Any ideas?View attachment 1546733

4in (6in reccomended with a speed controler)fan minimum turned on high. that looks like a tiny space.

ninjagaiden said:

4in (6in reccomended with a speed controler)fan minimum turned on high. that looks like a tiny space.

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should I just put it inside of the grow cab?

waz up i bought two 4 inch vortex fan on ebay for 59.00 each they work great and decresed my temp by 10 to 12 degr.

Holy shit im in the same boat, my temps run 82-84 with the 250 watt metal halide and cfls im using.

If you want a fairly cheap fix I'd go to home depot and get a duct fan, 6" or preferably 8". Somthing like http://www.homedepot.com/h_d1/N-5yc1v/R-100080191/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 . Cheap (under 40$) and won't handle bends in ducting very well but in a straight line will move you a couple hundred CFM fairly quietly. They also come in smaller sizes and cheaper prices. Of course cheaper then that would be a few PC fans.