350$?!?
ha

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Be careful though. I bought one of these and thought all my problems were over. But soon as flowering came the A/C unit pulls the air in to cool and exhaust the hot air it makes in the process. Well the smell was being sucked in to the A/C unit and being spit out the window all over the neighborhood... about shit myself when I came home and knew that the smell was coming from my house.

i was thinking about ducting air conditioning from a spot cooler like the one in the link below through an air-cooled light. if you have the ac unit outside the grow tent and leave the exhaust from the light open you'll have cool air blowing into the tent as well as over the light.

Windchaser SC7 Portable Spot Air Conditioner / Dehumidifier

why does a moderator have to approve my last post? is it because i included a link? sorry if thats a dumb question.

You can get an 11,000 btu portable exactly like you described right now at home depot for $299,i just looked at them yesterday while i was waiting on the manager to come see me so i could cuss his ass out.

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hey check out the windchaser sc7. i included some links but my posts haven't been approved yet. this could be ducted directly to the air-cooled reflector while positioned outside the grow tent. leaving the exhaust open would allow cool air to blow through the light and into the tent. there's one on ebay!

any thoughts?

Walmart has 5000btu (110v) units for $89

The most effective way to go is a cooltube or enclosed hood with a separate, closed air circuit. This is to say that the light gets its cooling air from outside the grow room and dumps warmed air back outside the room as well. This prevents air used for light cooling from mixing with the grow room airmass.

Use aircon if you must, but a closed air cooling circuit will prevent the aircon unit from having to shift heat from the lights out of the room's airmass. You'll find that if you have cooltubes and the ambient air you have available to draw into the room is at or under 23C, you probably won't need aircon.

Air-cooled lighting requires a constant air supply during lights-on. Chances are you won't need your aircon unit to run constantly. It is much less expensive on the old power bill to run a 150mm blower for the cooltubes (35W constantly during lights on) and another blower to exhaust the room (perhaps 200W, runs a few mins an hour). Will be much less costly than any aircon unit. No, cool air from an aircon system won't shatter an HPS lamp tube, but you don't want to connect the aircon unit to the lamp unless the aircon unit runs all the time that the lamp is on.

There are some grow setups where you just can't get air in sufficient quantity or low enough temp for cooling or have no way to get rid of it so it is not sucked right back into the grow. In those cases, aircon may be your only solution.

However, cooltubes where possible will cut the cost of using aircon- dramatically. The aircon unit will run only about 20% of the time it usually needs if it has to shift the lighting heat by itself.

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How not to grow dope - 'Not Your Father's Marijuana' / 'new super cannabis' / 'extra potent hydro' myths busted
DIY batwing reflector - DIY power panel to keep electrics safe and neat - DIY low-temp 3-day bud dryer - Get a harvest every 2 weeks - Photoessay: A batch of clones in rockwool - Project Big Blue Bastard: DIY 5-tube, 100 watt UV ioniser

...and don't even THINK about asking me how to hide your grow from your MOM. This is an adult sport. Give it up until you grow up.

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The basic point to take from this is that cooltubes which have an air path independent of the airmass in the grow room will remove the vast majority of heat from the lights (upwards of 90%) before it ever comes in contact with the room's airmass.

There's no aircon unit depicted in this (alleged) drawing, but if you find you need it, the only change to make to this arrangement is to run the exhaust blower on a timer so it draws in CO2 laden air for a few minutes an hour. The aircon unit will control the air temp. Without aircon, the exhaust (and intake) blower is run on a thermostat.

A separate blower for the cooltubes is required since the lights must have airflow at all times during lights-on. If you attempt to use the same blower to cool the lights as you use to exhaust the room air (or try to use aircon piped into the cooltubes), you will have no control over air temp, since the blower will have to run constantly- a thermostat can not be used.

The cooltubes don't really care about the temp of the air drawn into them. It would be a bit of a waste to use air from an aircon unit for the lights.

__________________
How not to grow dope - 'Not Your Father's Marijuana' / 'new super cannabis' / 'extra potent hydro' myths busted
DIY batwing reflector - DIY power panel to keep electrics safe and neat - DIY low-temp 3-day bud dryer - Get a harvest every 2 weeks - Photoessay: A batch of clones in rockwool - Project Big Blue Bastard: DIY 5-tube, 100 watt UV ioniser

...and don't even THINK about asking me how to hide your grow from your MOM. This is an adult sport. Give it up until you grow up.