Quote Originally Posted by GetThisOrDie
How are the temps in your tent using the 400w? Is it aircooled and what type of fan do you use?

Temps running ~75F with an ambient room temp of ~70.

Reflector is a Sunspot 6, yes, air-cooled. My fan is a 6" Wind Tunnel, also using a speed controller on it. I only run the fan at about 50%. It's more fan than needed, but throttling it down keeps it much quieter than a 4" at full-bore.

I'm running into an issue in my current grow with regard to plant height. A cool-tube gives a little more headroom in a smaller tent. My reflector is nice, puts down a nice pattern, but it eats up a lot of room at the top of a tent.
EvilCartman Reviewed by EvilCartman on . Questions about HPS and tent... Sup guys... Ive been using CFLs and LEDs and am curious to try an HPS for flowering. My tent dimensions are 31 1/2" x 31 1/2" x 63" tall. My biggest concern is heat compared to LED/CFL. I know it will get much hotter but I plan on using a cool tube or vented hood. Homebox (maker of my tent) says my tent should use a 250w HPS. Here are my questions: 1) Which cools better? Tube or vented hood? Rating: 5