HELP! Can anyone help with my temp in grpw room its to high thanks shiftyboy

my grow tent temp is to high, ive just put in a 600wat light and the temp is on 90 with doors shut, how can i keep temp down lower??? without leaving doors open??????????????? if antone can help i would be greatfull :rastasmoke:

vents and fans

Replace 600w with 150w.

Ive bought a new fan to blow air into my tent, but no change in temp, gonna try having exhaust buy window and see if that works my:pimp::pimp: tent is more than capable of having a 600w my mate has a smaller tent than mine and still hes got a 600, its strange, any help most greatfull

Exhaust is #1 importance. You need an exhaust most of all- and it has to be big enough to handle heat from whatever lamp you use. Passive intake is okay but you MUST have active exhaust.

1. What is the size of your grow space that you are using?
2. Are you using an air cooled hood or cool tube?
3. Are you exhausting outside the room (sealed exhaust ducting)?
4. how far away are the lights from where you're measuring the temperature?
5. What is the ambient temperature of the area outside your grow environment?
6. Is your ballast sitting inside your grow area?
7. You said you bought a fan.. What kind of fan did you buy? Is it an Inline Fan, squirrel cage fan, computer fan, box fan? etc etc. How many CFM's is it rated for? And again back to question #1.. what size is your grow space.

There is a lot of info you've left out that is relevant to the question you're asking.