1 Set Solar Dual Fan Kit with 15w Solar Panel, 13.78 x 11.02 x 0.7 Inch Solar Panel, 4.72 x 4.72 x 0.98 Inch Fans, Exhaust and Intake for Cooling Shed, Chicken Coop, Greenhouse

Bought this just to experiment with solar energy and am very impressed for the price. I measured the output at 11AM on a fall day and got 11 watts at 12V. Suspect that on a bright summer day could get 15 watts. Have seen 15 watt solar panels alone for more than the price of this, and this also comes with 12V fans and battery box for three 18650 lipo cells(batteries not included :). The battery box has what appears to be a 10 amp 12V lipo protection circuit. Comes with a cord to plug it into the solar panel. Haven't tried it, but if you plug the solar panel to the "in" on the battery box and plug the fans into the out on the battery box should be able to charge and run the fans at the same time.

I am really surprised at how much power and good performance these fans put out. I did purchase three 18650 batteries if I decide to use the fans after the sun goes down, but they batteries don't recharge during the day when they solar is running and if they do I haven't figured it out... but I like the option and the batteries I purchased came with a charger... I'm like how easy it is to install the fans and how I hear no noise when running them with the solar...I actually have to look and feel the air movement to know they are running. It really helps keep the temperature down with the good air flowing for the small area I use them for.

Air flow surprisingly good from two 4.7" computer type fans. They run at full speed when the panel is in direct sun. Also comes with a battery case that uses three lithiun cells (not included) but looks like it has a chip for charge control. Did not use the vattery case yet.

Either I didn’t get what was pictured or the package was incomplete. The solar panel power the fans with decent speed. But mine was missing the stand. Instructions were not for the items in the box, leaving out key details for some parts. The cord connectors were squished. When I went back to review the listing a few days after purchase, the listing was for a different variety of the product than what I ordered. Beware.

Absolutely wonderful in our greenhouse! Yay for a product that works really well!

The Dual Fan Kit solar work well. As soon as the sun hits the solar power the fan started working. This product is as described.

We installed this in our shed and it’s basically useless. It doesn’t really do much at all.