so i have this light...........Hydrofarm Sunburst System 400W High Pressure Sodium (HPS), its where the ballast and the hood is one unit..............does anyone have any suggestions in how to cool this light i really dont want to buy and a/c unit to much electricity but i have to do something, my room can reach 90 degrees on the hot days and doesnt really go any lower than 82 degrees any other day, i have a 36"x20"x62" room and im tryin to not spend as much cash...any suggestions??

If you can't exhaust the light itself then you need to exhaust the heat from the room.

Look at getting some Can Fans to suck out the heat and to pump in fresh cool air. Also get some fans to circualte the air around the room and maybe 1 to blow directly at the light.

90 degrees is hot but with some good exhaust then you should be able to lower by 10 degrees or so.

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Down's 7 Course Meal: A 6 Pack and a Joint

I used to just leave the door open when the lights on and i have a 6" fan its only 25watts wont put up the electics much that took my temps down a good bit but made it alot less stealthy

bottles of frozen water under an oscillating fan

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http://www.rollitup.org/grow-journal...boy-style.html

Hey Don would that not bring up the humidity an awful? I got stung with that budrot before i def wouldnt want it happening again!

You need A/C.

but i dont know if you can or cannot exhaust the light, because it has 3 vents all around, one on the bottom back where the ballast is, one inside the hood in the front , and then one on top right above the light, but there not just like open cirlces, there circle with vents, heres a pic http://cgi.ebay.com/400-watt-HPS-Sun...3286.m20.l1116

ok ok ill look into some
do you have a ruff estimate of how much it'll raise the electric bill?

The standard $100 (about 5,000 BTU) a/c unit is only about 500 watts. A/Cs are actually very efficient.

I know this is a lil late but I have an a/c unit in my bedroom window and I just run a dryer duct from it into the back of my grow box. It works really well and I am still able to use the a/c to cool off my room.

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