I use 10" fans, ducts and scrubbers and run the fan with a step dimmer to run it on very low rpms as bigger diameter means lower airspeeds and less noise with same throughput!
All the best mate
CC
Thanks for that Chevy,,,
A few little tweaks to make things near as perfect ,,
yeah mate,,fan controller is a necessity,,,keep it at 70% setting with two lamps and upto 85% setting when using 3x600w,,,
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