Hey guys thanks for the replies

I can spend a bit more on a better fan now, As i wanted to spend £100 - £120 maximum combined for the ventilation and the cool tube but i just won a cool tube on eBay for £21 delivered which was nice so i can spend a bit more on a fan

Also i understand the whole fan thing, I plan to put it about 1-2ft after the light so it should work pretty well

i only have a small space to work with at the moment so i agree i need to splash out on buying decent ventilation.

Thanks for the help
Gruffy Reviewed by Gruffy on . cool tube ? extraction Hey guys n gals .. I am gonna buy a cool tube for my setup .. what fan would i need to sufficiently cool a 400w hps light ? and would the fan be pushing the hot air out of the tube or sucking it ..in other words does the fan go before or after the light .. im having a dumb moment and i reckon its extraction hence why they are called extraction fans lol i just need someone to verify lol regards :) hope someone answers :) Rating: 5