Do you need a cooltube when using a 400w his light?

In a 1 m x 1 m x 2 m tent? Using a fan will add 2 clip fans

Do you need a condom when banging strippers? No but it would really help. Lots of heat 2 clip fans won't do it

Plus a Centrifugal fan?

no, i'm personally not a fan of cool tubes as they have a really horrible foot print compared to other air cooled hoods..

I ran a 400w cooltube 6" with a 430 cfm centri fan through a scrubber in a 5x5x5 tent. Inner temps about 76 at 1\2 blower power 45% rh
Without the blower and ducting ghooked up, and only a 100cfm duct booster temps would hit 82-89.

When I get my 600w one day I will use the square ventilation hoods

I'm talking feet not meters

racerboy71 said:

no, i'm personally not a fan of cool tubes as they have a really horrible foot print compared to other air cooled hoods..

Click to expand...

And the glass cuts a lot of the UV-B that we want for THC production.

I got same size tent....400w HPS open bulb w/ bat wing reflector.... 420 cfm exhausting... 120 cfm intake w/ an open passive intake... temps stay around 75° to 77°