Wathai 120mm x 38mm 12V Waterproof Exhaust Fan Dual Ball High Preformance for Greenhouse, Van, Humid Environments, Outdoor Enclosures or DIY Cooling Ventilation Projects IP67

Works well on my homemade humidifier unit. High humidity isn't effecting it like others I've had.

These have really proven to be highly worthwhile for many custom applications and general fabrication of a massive variety of projects.The fans are quite strong for the small size but certainly draw a great deal of air. Their power consumption is minimal and the fan housing are strong and appear very well made.These two specific units are being utilized within a custom bug zapper, which helps to literally draw the insects into the electrical grid instead of waiting for them to eventually land on them. At approx. 4 inches, they'll do a terrific job and absolutely increase the bug zappers efficiency and overall performance.

These are some decent fans. Using them outside and they seem to be working just fine.

We needed to "fix" our RV refrigerator since it kept getting too warm. My husband placed these fans where the broken frig fan was and we have had ice cold milk, frozen ice, without issues!The fans were a lifesaver!

I used an external power source to power one up. The air flow was super low compared to other fans of the same size.They are super quiet however.

Great 12v fans, I added them to fridge on my Rv with thermo to help cool unit better

Revised 3 weeks later: The fan stopped working. So I contacted the vendor and explained the application and asked what I believed was a simple question: “What is the recommended operating temperatures for this fan?”Several days later, instead of a simple answer I get another question. They asked, “what temperature is your refrigerator?”I answered of course, but what difference does it make? How does the operating temperature of my refrigerator impact the operating temperature of this model fan? Despite an immediate reply, a week or so has passed and they have not responded. Recommendation has changed accordingly.- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -I have a Sea Frost Air Cooled Ref/freezer. The plates are in the freezer (naturally) and “air flow” is the only way cold passes from the freezer to the refrigerator. They are side by side, with two openings between the sides. Bad design.Added one of these fans to the opening opposite of the center plate to draw air into the refrigerator. Works great. May have to add a way to adjust the speed of the fan to makes sure it doesn’t get too cold. But for now, that’s a nice problem to have.There is plenty of power in this little fan. Shame they don’t work more than 3 weeks.Poor life span, miserable service, there I can’t recommend them 👎🏽 Helpful? 👇🏽

Only had this in use for 3 days, but it's 100% doing its job creating airflow through my RV'S LP fridge vents.I wish I'd thought to do this 2 years ago, adding airflow to a passive venting system has made a HUGE improvement in the fridge temperature in hot, 85° + days. The energy use is minimal, over 24 hours maybe 3/AH total.If the fan holds up as advertised IP67, and I did make a small "umbrella" above it anyway, and if it's good for 50,000 hours as spec'd, then it's perfect.It's got strong airflow, no issues with that.