Simple ventilation question...

Would it be ok to use a 6 inch 400 cfm fan with an 8 inch raptor using duct reducers? The area is only 5x5, I was just wondering if a 6 inch fan hooked up to a carbon filter will effectively cool the light. (1000 watt hps) could I just buy a duct reducer and go with it, or do I absolutely have to purchase an 8 inch fan

I think you will be fine. I don't have a 1k but I have a
6" wind tunnel that cools x2 600's. but I don't use a filter.

yes. i use a 6" 449cfm on 3-1000's.

Agreed with all the above ^^^^, you have all the fan you need for one 1k light. With cfm to spare, you have a bit more freedom in your ducting before you start losing effectiveness.

Peace and Good Luck M8

Asmallvoice

I figured I would be ok, just had to check +k for everyone that responded promptly