The plan is to put a single 150 watt hps light ( not a cool tube ) in two 32 gal rubbermaid bins stack atop each other. I want to hang the light from the top obviously and have a 6 in axel fan ( rated at 250 +/- CFM ) as an exaust fan with one or two passive intake holes on the lower portion of the side. Its about 3.5 cubic feet in the bins. So the fan would clear out the air about 71 times per min ( 4260 times per hour ). I will be lst'ing the plant i put in there so it wont be so close to the light. Any advise would be awesome. One question in particular is should i place the fan over the light on top of the set up? Or on the side twords the top?
Thanks in advance.. Happy smoken:jointsmile:
TheBudReaper Reviewed by TheBudReaper on . How much CFM needed to cool a 150 watt hps in a rubbermaid grow The plan is to put a single 150 watt hps light ( not a cool tube ) in two 32 gal rubbermaid bins stack atop each other. I want to hang the light from the top obviously and have a 6 in axel fan ( rated at 250 +/- CFM ) as an exaust fan with one or two passive intake holes on the lower portion of the side. Its about 3.5 cubic feet in the bins. So the fan would clear out the air about 71 times per min ( 4260 times per hour ). I will be lst'ing the plant i put in there so it wont be so close to the Rating: 5