Amtrak Solar’s Powerful 40-Watt Solar Attic Fan Quietly Cools and ventilates Your House Garage or RV and Protects Against Moisture Build-up

I installed this on a 20' shipping container by cutting a hole in the upper part of one door. Mounted the panel on the roof with spacers on one end to create a slight tilt. Cut an air intake in the back at the bottom to pull in the coolest possible air. It made a noticeable difference, but I haven't measured the difference in temps wit and without the fan. Worked from the get go. Needs full sunlight to get good airflow, but that is when it needs to work! My package was missing the 15' extension cord, but I sent a message and was contacted quickly and was sent the cord. So good customer support.

Just installed this fan in my greenhouse, and so far it looks like it will be very effective. I was especially pleased to find out that you can reverse the cable connections to change the direction that the fan runs. That will be handy when I want to switch from blowing cool air in from the outside to exhausting the inside hot air out. (A built-in toggle switch would have been a nice touch though.) It reacts instantly to the amount of sun exposure on the panel, so fan speed is constantly adjusting on days where the clouds are abundant and moving across the sun. It does run fairly loudly when it's at full speed, but I think that somewhat reflects how powerful it is. The panel is of considerable size but was easy to install on the greenhouse roof. The positioning of the panel is permanent, and you can't adjust the angle, although with a little DIY and the right hardware you could probably mount it for adjustable angle. The materials and construction appear to be very sturdy. Solar power!.....that's 100 watts that won't have to be drawn from my limited electrical supply.

Product is high quality and works very well. Easy setup as well. Video posted didn’t capture true fan speed. This fan is moving fast and producing a large air flow.

Bought this to keep my outdoor shed a little cooler. Using it as an exhaust fan. Works good why it worked....twice. This fan runs constantly runs during daylight hours except cloudy days. Two times it has quit and when I checked on it, both times the wire connectors had melted, once at the fan, second time at the solar panel outside mount on the roof. It needs a regulator or something. I think to much power is getting to it. This fan runs full blast at full sun.

Had this shipped to Philippines and installed on house we are building. Installed in ceiling so it keeps ai moving and out the gable vents. Have seen a great improvement on how warm it gets.