LED and fan wires

[Blacktank]

looks like i have two options

   

60mm fan or two in the existing hole,just over 2.5" 

or prebuilt
https://www.ebay.com/itm/392061081751

https://www.amazon.com/MonkeyJack-Caravan-Ventilation-2000RPM-Waterproof/dp/B078MZ5TMY/ref=pd_lpo_sbs_263_t_0?_encoding=UTF8&psc=1&refRID=ETVSVMFXNB062CH5MK4M

there are a few to choice from,not seeing a 30mm computer fan moving much air,this will be just when cooking

[GypsyDogs]

How about one of those air-funnel reducers??

[GypsyDogs]

Like this.. (Just screw it over the existing port...)
POWERTEC 70150 Rectangular Dust Hood for 4-Inch Hose https://www.amazon.com/dp/B00M3JFNOO/ref...3Bb54FMJ70

[sternwake]

I'd open up that wood to install no less than a 92mm diameter fan, two of them side by side.

Even a powerful high rpm 60mm fan is not going to move all tham much air, and high rpm small fans are annoyingly loud and high pitched. Consider this outlet another possible way to exchange inside air for outside air. Whatever these fans exhaust will come in through an open window/door or intake fan.

Cut out a 180Mm square from some cardboard and see if yoyu can justify modification to fit the silverstone fm181. The built in speed controller seals the deal, in my opinion

[Blacktank]

would this be plug n play on my 12v system? https://www.walmart.com/ip/SilverStone-Technology-120mm-x-120mm-x-25mm-fan-with-high-110CFM-airflow-and-black-aluminum-manual-controller-FM121B/45116785?wmlspartner=wlpa&selectedSellerId=17994&adid=22222222227033875561&wl0=&wl1=g&wl2=c&wl3=54860111978&wl4=pla-85978373618&wl5=9032901&wl6=&wl7=&wl8=&wl9=pla&wl10=125198820&wl11=online&wl12=45116785&wl13=&veh=sem&gclid=EAIaIQobChMIj_Olq4fG3wIVeSCtBh0rSw-qEAkYAyABEgJA-vD_BwE
building up condensation,with tarp on the roof vents are covered and 3/4 of the side windows so while i can get dry heat(electric heater)i need some exhaust to get the air out

[sternwake]

Yes, red and black wires to feed it DC voltage add the speed controller has 2 wires which can be extended to install the speed control potentiometer anywhere you desire.

Whether a 120mm fan can fit your requirements is unknown.

They sell this fan with either a black or aluminum colored backing plate for the potentiometer, and sometimes one or the other color might have it a few dollars cheaper. But this fan has always been a 21$+ fan, so thanks, since mine just failed after 9 years of faithful use and abuse, I just ordered it from wally world, saving 5$ over Amazon's price.

[Blacktank]

ordered one,there are a couple more at that price,in the end will want a couple for constant quiet exhaust and air movement while sleeping

[sternwake]

Says 3 left. Great price for a powerful fan with built in variable speed control. Last time I ordered one it was over 24$.

[Blacktank]

got the fan today,havent tested yet,came with a metal cover,will need to add a toggle/button for on/off

whats the yellow wire?

[sternwake]

Yellow wire tells computer motherboard the fan rpm. You can snip it off.

Mine arrived today too, though usps tracking was way off.