[Casadelwhacko]

Had to look that up!🤣 Essentially the same thing. I used foil tape and secured the fan to the end of the hose, inside a modified square Tupperware container the same size, to give it some stability and not look so jankey. That pulls in cool air and the exhaust fan keeps it flowing too. Seeing that Peltier idea has me thinking I should figure out a manifold and 6” fan in conjunction to pull heat directly on top of my light drivers in all four tents and push the exhaust through a carbon filter into my lung room! The room AC would more than compensate for the minute increase in heat and a common fan on 2-3 would pull heat from them all without changing the environment too greatly. I’m pushing 80° during flower in my 3×3 with a 400w panel light and I’m worried about gassing off terms in the next run I have flipping in a few weeks. It’ll be worse by July 1. Hmmmm. Extruded Aluminum heat sinks are CHEAP! Wow!! S1 fans are too… I’m headed to Amazon and the drawing board!

That Bluetooth 69 may have found a new life!! Killer!!