just trying a parabola i made

Cut the center hole for the light to almost 6 inches and cut the light flange to allow aairflow past the bulb. Pulls hot air from around the bulb. I think its ingenious. Any opinions are greatly appreciated.

Here are a few pics

Nice ,...

but I'd be tempted to have a direct outlet,

and cut out them fancy louvres

they must be a noise maker anyway?

I literally just got it all set up and running. Adding duck tape now to the cheap hose and those devil slots. My 440 cm fan at half way has it feeling comfortable so far. Take a while for whole room to warm up. 600w hps

Its actually not noisy at all

Nice work I have never seen that before

I haven't either. Kinda reason I'm trying it. Seems to pull the heat out very well

Yes I think its great idea

Same idea as a cooltube. Just pulls fresh cool air through the area affected most by the rays and bulb. I haven't grew anything with it yet but it is still a winner

Yes I think so

I run 4x10 fans just because of heat here i just use bat wings here picture of my grow
Still have 2 and half weeks to go

Nice, sog?