When your basement starts reeking take your fan and attach it to carbon filter inside the tent like you have it and blow through your lites, I thought the same exact thing but the lights are not air tight and when you pull it is going to pull smell through. I have a 1000w Mondo set up this way and since I changed it from what you have to what I now have there is ZERO smell. My temps stayed the same from the change to, just make sure that the air flow is hitting the back of the bulb and not the front. With out a doubt the tent is the way to go, I got a 6" Vortex hooked up to a 33 carbon filter inside the tent, and the tent walls suck right to the poles, fresh air in and cleaned air out and any air leaks from the light will be clean air bak in the tent. Also when you pull that far through a filter you take a chance on collapsing the pipe and if that happens that tent is going to bake in no time.