Cool Tube?

I'm curriuos as to how effective a cool tube hooked to a 3100 RPM and 190 CFM Fan ould be in fighting off heat?

I would like to use a 400 or at least a 250Watt HPS in my grow room but my grow room is only 3x2 and 4Ft High.

Would a cool tube hooked to that fan be enough to control my heat issues?

I also have a small window fan i will use for extra ventalation.

These are the lights and fans im thinking of

http://cgi.ebay.com/250-Watt-HPS-Cool-Tube-Digital-Grow-Light-COOLTUBE-NEW_W0QQitemZ270517580233QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3efc1ab1c9

http://cgi.ebay.com/400-WATT-400W-HPS-DIGITAL-GROW-LIGHT-AIR-COOL-TUBE-HOOD_W0QQitemZ160395715102QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item255854621e
and this is the fan
http://cgi.ebay.com/4-INCH-HYDROPONIC-190CFM-INLINE-EXHAUST-VENT-FAN-BLOWER_W0QQitemZ300388448150QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item45f08bf796

 
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