Holy shit Hyroot! We don't want to suck our grandpa's wig up the duct when he comes to visit lol... 230 watts to power a fan, holy bananas. Either wattage works a whole lot differently on your 120 volt systems of I found myself some damn good low wattage extractors... I am using 85 watts to vent 1000 watts and it is WAAAAY excessive. I used to vent a 4 by 4 meter room kicking 3600w using around 125 watts of fans. I could NEVER smell anything in the room, no filters, it vented THAT fast. Extra heat didn't even help in cold months, just got sucked right out.
Anyhow, I feel there is bit of a gap in this discussion. Nobody is mentioning CMH. What I have now seen even the tiny little 300 watt lamps do just makes the jaw drop. Super long globe life, efficient energy use. I would like to see a scientifically approached comparison between the THREE types of lighting, traditional HID, LED, and CMH.
I am a lot more interested in CMH than LED myself.