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So I am not a 'fan' of the Oust Fan! However there are a number of people who don't have automated systems who would still like an automated timed fan that can push a hefty amount of air and water around inside their humidor. Seeing it is a holiday weekend, I decided to prototype such a device, and here it is! I purchased a couple of these programable timer modules about 6-8 months ago and have wondered just how good they are and what their mean-time to failure was. So I set one of them up to run a fan on a bench in the lab, 4 seconds run time, 4 seconds off time. The damn thing has been running almost non-stop for over 6 months now. The setup: Wood pattern PVC box that I port in the shop. This one has a ball bearing, long life 23CFM 60mm fan, tobacco plant grill guard, programmable timer, lever nut (EZ connect wire connectors) and some silicone rubber feet for the bottom. It is completely wired inside the box (the timer is in there as well). Plug in the wires to a 12VDC power supply (maybe an old router/cordless vacuum power supply) and you are off and running. I don't have literature on the timer, but it has a nonvolatile memory and runs off 12VDC just like the fan. You plug in a 12VDC power supply and off it goes. I figure running one 30 seconds out of 300 seconds is just perfect. Of course you can select just about any time you want. Cheers! -Piggy