Indoor What extractor to chose?

[icgreen]

Hello,
I have a grow box 70H x 65L x 35l (cm) with 5 x 32w 2700k CFL`s and a homemade active carbon filter. What extractor should i use to get rid of the heat:

1. 100mm, 105 m3/h, 37 Pa or
   
2. 125mm, 185 m3/h, 57 Pa

 

[lonewolf25]

im in the process of picking an extracter too, i really like the look of this hyper fan but its bloomin expensive

 

[icgreen]

Anyone??

 

[Bilbo]

Try any 4" RVK type fan and you'll be fine, Rhino make pretty good ones with the option of 2 speed or built in thermostatic controller. Same as with everything in life you get what you pay for when it comes to fans