Amtrak Solar12-Inch 100W Solar Attic Fan Assembled in the USA – Quiet, Waterproof Vent for Attic, Garage, Greenhouse – Plug & Play Cooling with Monocrystalline Panel

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.

I works really well. Until a cloud comes over, very sensitive. But all in all It does what it's suppose to do. Life span unknown.

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 does not come with waterproof connectors. 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.

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.

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

Well packaged and works well

Expected a fan with bullet connectors. Check.Expected a solar panel with MC4 connectors. Check.Expected two wires with appropriate bullets on one side and MC4 connectors on the other. Not check.The Audiopipe 16 gauge speaker wire they included is wired as an extension cable with male to female bullet style connectors on both ends. If it works, it'll be a bad and unreliable connection. Definitely not water tight or even corrosion resistant.Would not recommend for anyone planning to use it out of the box. If you plan on throwing the included wire away, then it doesn't matter.

The output of the fan airflow is very powerful.