

☀️ Stay cool, stay green—ventilate smarter, not harder!
This solar powered dual-fan system delivers 200 CFM airflow using a 20W monocrystalline solar panel, perfect for ventilating small outdoor spaces like sheds, greenhouses, and chicken coops. Featuring IPX7 waterproofing and durable aluminum housing, it withstands harsh weather while operating quietly at 40 decibels. The included installation kit and 13-foot on/off switch cable enable flexible mounting and easy control, making it an eco-friendly, low-maintenance ventilation solution for millennial professionals seeking sustainable comfort.





| ASIN | B0B99WLPM4 |
| Air Flow Capacity | 200 Cubic Feet Per Minute |
| Batteries Required? | No |
| Best Sellers Rank | #49,502 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #34 in Greenhouse Ventilation Equipment |
| Brand | erifyng |
| Color | Black |
| Control Method | Touch |
| Customer Reviews | 4.0 4.0 out of 5 stars (883) |
| Date First Available | August 11, 2022 |
| Efficiency | 8 cubic feet per minute per watt |
| Electric fan design | Exhaust Fan |
| Finish | Polished |
| Finish Type | Polished |
| Included Components | Switch |
| Indoor/Outdoor Usage | Outdoor |
| Installation Type | Wall Mount |
| Is Cordless? | Yes |
| Item Weight | 4.5 pounds |
| Item model number | ER_SPF_DBB |
| Manufacturer | Zhongshan Jindian Lighting Technology Co., Ltd |
| Maximum Power | 20 Watts |
| Model Name | ER_SPF_DBB |
| Motor Type | DC motor |
| Noise Level | 40 Decibels |
| Number of Power Levels | 1 |
| Pattern | Fan |
| Power Source | Solar Powered |
| Product Dimensions | 5"D x 5"W x 1.5"H |
| Recommended Uses For Product | Exhausting |
| Shape | Rctangular |
| Size | Fan |
| Special Feature | Waterproof |
| Special Features | Waterproof |
| Style | Modern |
| Switch Type | Push Button |
| Usage | Outside; Professional |
| Voltage | 12 Volts (DC) |
| Wattage | 25 watts |
D**E
Good for the money
Works as advertised. I have a small 6x10 greenhouse which is larger than recommended for this item so I did not expect a lot of volume, and it did not disappoint as it does not put out a lot of air, just enough to move some air around. Solar panel works well just as stated, when you have a lot of direct sunlight it moves the fan or fans fast, in low sunlight they move very slowly. You get what you pay for and for the money this is OK.
K**T
Works great. Good purchase.
Works great even on overcast days, just works slower. Even worked on rainy days. I got it for my 5.5ft x 12ft x 7ft tall catio. It's definitely helped keep the temp down on the hot days (80°+) from getting hotter than the air temp because of the PVC roof. With my roll out sun shade. I'm thinking of getting a 2nd set for the catio, and one for my tool shed. Affordable, easy to assemble/install. It'll be easy to take down since I just have it clamped on my catio roof, and small enough to store easily for the winter. Cats barely notice it.
H**1
Work well
Easy to install and started working right away, only part I didn't like was they do not move alot of air so good for a small space
Y**A
Great product
Installation and Setup First off, the installation process was straightforward. The fan came with clear instructions and all the necessary mounting hardware. I mounted it on the side of my shed and ran the solar panel to an unobstructed area where it could capture maximum sunlight. The entire setup took less than an hour, which is impressive for such efficiency.Another highlight is the build quality. Made from durable, weather-resistant materials, it withstands the elements well. The design is sleek, which fits nicely on my shed, and its fan blades are designed to maximize airflow with minimal noise. I appreciate that it is both functional and aesthetically pleasing.
E**Y
Fan's stopped working after 9 months.
Bought this in March 2025 and the fans don't work anymore. There's no way to get a hold of someone to help.
P**T
Solar fans
Use my coop to keep chickens cool during the summer and take heat out of it, solar powered and we hooked and up a battery to so it can run at night if needed. Very easy set up and works really well.
F**N
Great setup
Product as described, no manual no prob, fans are 5x5, easy hookup, set both fans to draw out hot air , fans are a little small for the size of my greenhouse but still does a diesent job,, I leave both fans in on position all the time, solar panel does a good job, the brighter the day the faster the fans run, even on the cloudiest days the fans still runs just at a slower speed, fairly well built, worth the price, I may buy another set for intake air on the other end.
S**N
Works
Solar panel is a bit heavy so you need to have a solid bracing. Definitely didn’t want to drill holes through the roof so I’m thinking to hang it off an eave on the shed. Fans both work well. A bit noisy but It’s in a shed so no problem. EDIT. Regarding airflow: Fans appear to be repurposed computer case type fans so not powerful ventilation but for being powered by solar, they move plenty of air for a small shed. If you need more ventilation, get a pair as an intake and a pair as outputs. Great waterproof screw on wire connectors, not the push on ones that can get ruined in the rain. They don’t sell replacement parts so if one fan dies you are stuck to do a warranty or buy a whole set again. Customer service is great. They were very helpful and offered to send me a new complete kit when I asked about spare fans. Definitely recommend this one.
H**K
ソーラーパネルは変形し、保護ガラスが割れていた。返品手続きをしたところ、誠意ある対応をしていただいた。
B**Y
Great value , easy to install , as advertised.
U**G
Thanks
T**N
The wiring between components is not robust enough for outdoor use. The connectors are poor. In addition the fans cannot be placed more than 1 metre apart due to wire lengths.
ど**ど
夏場、サンルームが暑くなりすぎるので設置してみたが直射日光が当たらないと2個は回らないし風も弱い。
Trustpilot
1 month ago
2 days ago