Cool thanks. I should mention I also have one of these sucking in cool air at the bottom, its either 60 or 90m³/h

FAN.........

Btw, both holes are done and puttied. Drying till tomorrow, fresh coat of matte white tomorrow for the next grow
faithlessxxx Reviewed by faithlessxxx on . Ventilation Duct Fan For COOLTUBE Question I'm hoping to use it to make a cooltube for a 400w HPS, alternatively a 250HPS. Will this do? These are the specs: TD 160/100. 2 speed: 2500/2100 v/min. Effect 35/23 W. Decibel 39/35 dB(A). Max. air: 160 m³/tim. Rating: 5