Amtrak Solar 12-Inch 100W Solar Attic Fan with Thermostat – Solar Powered Vent Fan for Attic, Garage, Shed, Greenhouse, RV – Quiet High-Airflow Exhaust Fan – Plug & Play – Made in USA

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.

The panel and fan function as they should. I purchased one with a 100-watt panel. The fan speed is more than sufficient to cool my 400-square-foot garage attic. Be aware that you might find it too noisy depending on the ambient. The extension cord is 16AWG, which seems to be at the borderline capacity. The instruction video shows the easiest but the riskiest way to mount the panel on the roof. To avoid leaks 100%, I used flashing mounts instead of drilling holes in the roof directly. Although it cost me approximately $200 in total for the mounts, conduit, and tools, on top of the product, I am happy that I did not cut corners. Update: The extension cord became hot, and plastic parts at the terminals were blackened. To be safe, I upgraded the cord to 12AWG with MC4 connectors.

Works great for my 1905 home with gable vents to move air through the attic by the power of the sun! It reminds me of a radiator fan on a car and it ACTUALLY has some power when the sun is out and works well even when it's slightly cloudy. Been using it for two months now so if it holds up to the test of time I will be very very happy.

Positive: Fan works - blows good air. Solar Panel provides enough power in direct sun light. Negative: Fan protrudes farther than shroud, so you need to build something to protect the blades and direct the air. Does not provide all of the connections for water tight electrical connections. if you dont want to burn your house down, you need to get the water tight connections - Or keep the solar panel indoors where it is dry.

I was a skeptic. These have been installed for a week and are running strong. So far these are as good as I had hoped for.

I bought this solar panel and fan in February 2025, and it performed well for a few months. Unfortunately, a couple of weeks ago the fan burned out and my greenhouse now faces the onslaught of summer without a fan. The PV panel continues to produce good voltage. I have asked the company for a replacement and will report back if I get support from them.

Fast shipping. The fan and panel seem well constructed, adequate length of wire provided. Recommend...

Solid little kit. See below for information on mounting in the flow direction of the air. For general notes: Solar panel looks well-made. Fan isn’t too noisy. Just a little whirrring noise. Fan bezel is sturdy. Wiring is a decent gauge and crimps are ok. The connections are all directional pigtails so there’s really only one way plug it all in by default. Solar panel really wants direct sunlight doesn't drive the fan in hazy or overcast conditions at all. If you want to blow air out of your attic, you mount it with the motor and the grill facing outward... if you put the motor and the grill facing inward, the air will be blown inward. To me, one trouble to be aware of if you are trying to blow air out of the attic, is that the fan bezel is set up to mount on the outside of a surface when exhausting air — given the way the grill is molded to sit flat on the intake side of the blades… I had to rig up some cross beams to catch the mounting brackets if I wanted the fan to be mounted inside of the gable‘s trim, and inside of bug screening and Basically just under the weather and more interior… Something should be improved with this design and the bezel should be more dial mount and the blades shape suited to reversal (Probably some efficiency last to do a dual direction blade) I did try what somebody else suggested it and reverse the cables and flipped polarity On the little motor… That will spend the motor in the opposite direction that the fan blades are designed for that direction and you won’t get very good performance. I would say this product would be hugely improved by selling either two separate directional options for the fan configuration, or selling a more universal mount fan with this kit The brackets for the solar panel were made out of a very light gauge steel, only as thick as a playing card. Very low quality brackets. But may be adequate depending on the install quality. I would definitely prefer some heavier brackets given the windos in my area, And I would say there would probably be less liability with better brackets, That solar panel has some sharp aluminum corners but it’s relatively light for the surface area and with those soft brackets I could imagine the wind catching that panel and taking it like a frisbee.