Originally Posted by
Herbitual
I have a friend (it's me) who needs advice because he's a bit thick and I said I'd sort him out.
This 'friend' is just pondering a move from LED to HPS and doesn't want to cause a fuss or anything but he (or she - but it is he) is happy as Larry with two 400W COBs pulling 200W each but thinks that he (or she) could do better with a dimmable 600W HPS with a circa 40cmx40cm reflector (perhaps with a cool tube at a later point)
His (or her) tent is 120(W) x 60(D) x 120(H) and this absolute idiot that I know is asking if that would be a suitable size for a basic HPS kit...you know, to dip his (or her) delicate toes in.
Would the heat be too much for a passive intake but with a 4" RAM extractor? Allegedly, the tent temp with the two COBs running is 27C with ambients as they are in his (or her) particular part of this green and pleasant.
Would a cool tube tube significantly reduce the temps if he (or indeed she) were to buy one?
I told you they were a bit dim.
Forgive me for asking on their (stupid) behalf.
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