Yes, there is a formula. 90 cfm for each 400w reflector, 125 cfm for each 600w reflector, and 200 cfm for each 1000w reflector. Most 6" fans are around 400 cfm, so you'd be good with one of those.
No problem, glad I could helpSweet, thank you sir! + 1 on the rep for you. Very helpful.
Hi MsJazzy.I am so confused about the differences of fans.. Booster vs. inline?? Sorry.. i just ordered a 6" inline fan and just trying to learn.![]()