Haight1985
Active Member
How much cfm would be sufficent to cool a 600watt hps 6" air cooled. Before I purchase a fan it would be good to know. I see 6" Inline Duct Fans 150cfm for $49.99 and then there is 6" vortec style fans that pull way more cfm. I will be useing in a 4x4x7 area and the light will have its own fan and then I will have another fan to vent grow area since I want to use co2.