You want to put the t-stat,high! And make the fans draw not blow.If you use an oscillating fan use it on low.Use the controller to slow or speed the fan till you tweak it to correct temp.trial and error.

Ga Grown
GaGrown Reviewed by GaGrown on . primair controller ive just bought a primair controller that controls my fan speed and controls the temperture of my grow room. what i would like to no is where should i put the temperture probe attached to the primair system in the room to get a good ready....under the light,on the top of grow room..ect .... Rating: 5