Learn more
No featured offers available
We feature offers with an Add to Cart button when an offer meets our high standards for:
- Quality Price,
- Reliable delivery option, and
- Seller who offers good customer service
Wathai EC Industrial Case Fan 120mm x 38mm Ball Bearing 116 CFM AC 110V 115V 120V 220V 240V Brushless Cooling Fan 120x120x38mm
| Product Dimensions | 4.72"L x 4.72"W x 1.5"H |
| Brand | Wathai |
| Power Connector Type | AC power plug |
| Voltage | 120 Volts (AC) |
| Wattage | 6 watts |
| Cooling Method | Air |
| Compatible Devices | Desktop Gaming Console Inverter Laptop Printer Projector Refrigerator Router Server Smartphone Switch Tablet Television See more |
| Noise Level | 41 Decibels |
| Material | Plastic |
| Maximum Rotational Speed | 2800 RPM |
About this item
- High Performance Fan: This EC axial fan consume very less power & better efficiency than AC equivalent. Designed for projects that requires cooling or ventilation; or as a replacement fan for various products
- Plug not Wired to The Fan: The wires were not connected. Pls understand that because of projects that a fan may be used in
- Dual-Ball: Bearings have a lifespan of 67,000 hours and allows the fans to be laid flat or stand upright. DIY as ventilation fan
- What's in the box: Package include: 1 Piece 120mm fan include fan grill and mounting screws & nuts; 1* AC cord with switch(about 38 inches); 1* Power Plug
- 5 Inch Fan: 120 x 120 x 38 mm ( 4.72 x 4.72 x 1.5 in. ) | Rated Voltage :90V to 270V | Airflow: 116 CFM | Power: 6.0W | Speed: 2800 RPM | Noise: 41dBA ; It as suitable for industrial or non-residential environments
Product voltage: 120
This product is compatible with outlets that support 120 volts and might require a converter when used outside of the United States.
Featured items you may like
Product details
- Product Dimensions : 4.72 x 4.72 x 1.57 inches; 14.95 ounces
- Item model number : EC12038B110-240V
- Date First Available : May 29, 2019
- Manufacturer : Wathai
- ASIN : B07SH42DCD
- Best Sellers Rank: #43 in Computer Case Fans
- Customer Reviews:
From the brand
-
Our company produce Cooling products: EC Fan, AC Fan, DC Fan, USB Fan, Thermal pad, Cooling Heat sink, and other refrigeration products.
Professional for indoor ventilation and heat dissipation, cooling various electronic entertainment audio equipment, and can also be used as a replacement fan for various equipment.
All of our products have passed the CE & ROHS certificate.
-
EC 90V - 240V Fan
-
AC 110V 120V Fan
-
AC 100V-240V Variable Fan
-
5V USB Power Fan
-
DC Fans of Various Sizes
DC fans for home , for car , for rv, for boat, for solar panel.
Product description
Product description
- EC Fan What is EC technology?
- EC stands for Electronically Commutated, and it combines AC and DC voltages bringing the best of both worlds; the motor runs on a DC voltage, but with a normal AC supply.
- EC motors have several benefits. Because EC motors have no brushes, they do not spark or have a short life due to brushes. Other advantages include the fact that they do not waste power because the electronics control the stator; they provide better performance and controllability, and they run cooler than induction motors; In terms of size, small motors can achieve the same output as traditional DC or AC motors.
- Power distribution is much cleaner with an EC motor. Brushless DC motors depend on a separate DC power supply. And an AC motor’s power supply usually adds extra cost and complexity. EC motors can connect directly to AC main power supply with their integrated electronics. They do not completely depend on voltage or frequency; hence, small changes in voltage do not affect motor output.
- The EC fan is more windy than the AC fan, more energy efficient, and can work in the 70V - 270V voltage range, such as work under on 110V, 115,120V, 220V, 240V ,the fan speed are the same.
Product detail
Durable plastic material
- The EC fan can work in the 70V - 270V voltage range, such as work under on 110V, 120V, 220V, 240V ,the fan speed are the same.
Dual-Ball Motors
- Dual-ball bearings rated at up to 67,000 hours allows the fans to be mounted flat or upright.
Fan Filter
- Protect your fingers, and keep fan blade without damage ; wear-resistant and not easy to break.
Components
- Plug :The power plug needs to be connected to the fan cable, and then into it a wall outlet to start the fan . 59 inch.
- Wiring head :Connect fan cable and extension cable.
EC 60X25mm 70-270V
|
EC 80X25mm 70-270V
|
EC 90X25mm 70-270V
|
EC 120X25mm 70-270V
|
EC 120X38mm 70-270V
|
EC 120X32mm 70-270V
|
|
|---|---|---|---|---|---|---|
| Customer Reviews |
4.5 out of 5 stars 2,042
|
4.5 out of 5 stars 2,042
|
4.5 out of 5 stars 2,042
|
4.5 out of 5 stars 2,042
|
4.5 out of 5 stars 2,042
|
4.3 out of 5 stars 1,689
|
| Size | 60 x 60 x 25 mm/ 2.36 x 2.36 x 0.98 in. | 80 x 80 x 25 mm /3.14 x 3.14 x 1 in. | 92 x 92 x 25 mm / 3.62 x 3.62 x 1 in. | 120 x 120 x 25 mm / 4.72 x 4.72 x 1 in. | 120 x 120 x 38 mm / 4.72 x 4.72 x 1.5 in. | 120 x 120 x 32 mm / 4.72 x 4.72 x 1.26 in. |
| Rated Voltage | 90-270V | 90-270V | 90-270V | 90-270V | 90-270V | 90-270V |
| Speed | 4800 ±10%RPM | 2800 ±10%RPM | 2400 ±10%RPM | 2700 ±10%RPM | 2800 ±10%RPM | 2200 ±10%RPM |
| Air Flow | 24.8 ±10%CFM | 43.6 ±10%CFM | 54.8 ±10%CFM | 88.2 ±10%CFM | 116 ±10%CFM | 24.6 ±10%CFM |
| Noise | 35±10%dBA | 31±10%dBA | 31±10%dBA | 37±10%dBA | 41±10%dBA | 42±10%dBA |
| Power | 1.5 Watt | 2.0 Watt | 2.0 Watt | 3.0 Watt | 6.0 Watt | 4.0 Watt |
| Cable Length | 300mm /11.8 inchs | 300mm /11.8 inchs | 300mm /11.8 inchs | 300mm /11.8 inchs | 300mm /11.8 inchs | 300mm /11.8 inchs |
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers find the fan efficient and powerful, moving a lot of air and effectively preventing overheating routers. They appreciate its quality, ease of installation, and value for money. The noise level receives mixed feedback - while some find it very quiet, others say it's extremely loud for its size. The wiring also gets mixed reviews, with one customer noting it could be better.
AI Generated from the text of customer reviews
Customers find that the fan works well and is very efficient, with one customer specifically noting its effectiveness in a 25-year-old system.
"Got one of these making a wetsuit boot/glove drying contraption. Works great. Some assembly required...." Read more
"Used it for plants and works perfectly!! The size is beautiful and its almost dead quiet." Read more
"A little smaller than I expected but works good." Read more
"So far. Reliable and does exactly what is needed. A method to cool a Cable DVR box in a cabinet that needs a little more ventilation." Read more
Customers praise the fan's air flow, noting it moves a lot of air and blows really good.
"Exactly what I needed. Quieter than expected. Moves a lot of air. Included hardware is nice...." Read more
"Works as advertised. Plug it in and it moves air. Reasonably quiet." Read more
"...are affordable, easy to install, quiet and most importantly they move a lot of air! Would definitely recommend." Read more
"...2 wires do it all! Great airflow, noise level as acceptable. Will buy again!" Read more
Customers praise the fan's quality, describing it as a great little device with excellent craftsmanship, and one customer mentions it works well as a replacement case fan.
"Nice fan, moves the air and that's what I needed!" Read more
"Great Fan! I used this to replace a $300 OEM fan in a freezer. 5 years later and it is still running strong." Read more
"Works perfectly for my intended use great product. This fan has ran 2 months 24-7 nonstop. I highly recommend this product" Read more
"Great little fan..." Read more
Customers find the fan easy to install and use, with one customer noting it's simple to wire.
"It was easy to install but didn’t work. I checked for continuity between wires and there was not any. Ugh" Read more
"Did its job. And it probably still doings its job. Easy to use. Comes with cord option uninstalled which I liked for my application." Read more
"Super quiet. Easy install. Great buy for a replacement case fan for a network rack." Read more
"...It is the most difficult fan to replace of the three, so I thought it would be prudent to add an additional fan to prevent heat damage to the power..." Read more
Customers find the fan to be good value for money.
"...Did exactly what we wanted, for a good value...." Read more
"...great value." Read more
"a nice fan for the price." Read more
"...These fans are affordable, easy to install, quiet and most importantly they move a lot of air!..." Read more
Customers praise the fan's cooling capabilities, particularly its ability to prevent overheating in routers, and one customer mentions its effectiveness in cooling guitar amp tubes.
"Great Cooling Fan..." Read more
"...I use these to circulate air for radio equipment non solid state. Cools well but when transmitting the other station does hear them running." Read more
"Perfect size for what I needed. Removes the hot air out ofnthe space very well. But it is very very loud for such a small fan." Read more
"Keeps my audio receiver cool without extra noise" Read more
Customers have mixed experiences with the fan's noise level, with some finding it very quiet as new and works quietly, while others report it being extremely loud for its size.
"Well, it's a cheap imported fan. It is quiet. The airflow is not impressive at all. To use it you will need to fashion a 120V connection...." Read more
"...It generates a good fan speed. However, it is rather loud and noisy...." Read more
"Very quiet, 120 volt was what i needed. Comes with cord but connected the stripped leads to my power block." Read more
"Very loud... going to replace with quieter fan." Read more
Customers have mixed opinions about the fan's wiring, with some appreciating the included connector and practical installation features, while others report issues with connecting the wires.
"...What I got was a completely deconstructed fan including a very scary looking bare wire 'plug' and some weird thing I apparently have to crimp it into..." Read more
"...works great other than that, I like that they included a wire connector for the cord set, but sheesh . . . these are supposed to be QUIET . . ...." Read more
"...The item does not come fully assembled. It took a little time to connect the wirings. All in all, it serves the purposes." Read more
"No complicated wiring to use this from 110 to 240 volts! 2 wires do it all! Great airflow, noise level as acceptable. Will buy again!" Read more
Reviews with images
Good auxiliary fan
Top reviews from the United States
There was a problem filtering reviews. Please reload the page.
- Reviewed in the United States on September 3, 2022Style: 80x25mmVerified PurchaseGreetings,
There are times when these little "muffin fans" can be real life savers!
My aging computer has three such fans mounted inside to cool the system, but one has a dry bearing and going wonky. It is the most difficult fan to replace of the three, so I thought it would be prudent to add an additional fan to prevent heat damage to the power supply.
I Gorilla glued the new 80x80x25mm fan outside the outer case, over an open grill, adjacent to the power supply. It pumps fresh air in through this grill. I give it five stars for an effective, temporary, "quick fix" with a darn good little fan! It comes boxed with "quick connect" wire clamps, mounting screws and a nice chrome grill-work.
Got it up and running as fast as the glue dried. It is whisper quiet and works like a champ!
- Reviewed in the United States on November 9, 2025Style: 80x25mmVerified PurchaseUsed for my motorhome refrigerator to cool the outside coils!
- Reviewed in the United States on September 5, 2025Style: 120x38mmVerified PurchaseIt works extremely well as an air extractor / circulator for a home made dehydrator. In fact it moves so much air that I had to reduce the size of the vent hole supplying it, this was easily done by placing a price of plastic partially over the hole I had already created.
It has been operating reliable for months.
- Reviewed in the United States on April 20, 2021Style: 120x38mmVerified PurchaseThis review is for the Wathai 120mm x 38mm EC fan. I purchased two of these to replace two old shaded pole fans (non-muffin style) rated at 22 watts each that I had mounted to the top rear of my wood stove. Using a Ponie PN1500 energy monitor, I identified the combined power consumption of the old, high speed, whining fans was 38 watts. I started looking for more efficient fans since they often run for days on end. Researching regular AC muffin fans showed they weren't any better for lower power consumption. Turns out the typical, inexpensive, AC muffin fans are also a shaded pole motor design. I considered going with Brush Less DC (BLDC) fans but then I'd need a Switch Mode Power Supply (SMPS) to convert the AC to appropriate DC voltage for them. I also learned that using 48vdc BLDC fans with a SMPS would have been the more efficient route. However, that effort lead me to the newer EC designed fans. These are essentially a 48Vdc (or maybe 60Vdc) BLDC muffin fan with a SMPS built-in that works directly off-line (no AC transformer) to convert the AC to DC. By using PWM, the EC fan can handle a very wide range of AC input voltages (by design they should also be able to handle DC input voltages of same range, just like many SMPS can; but I didn't find any manufacturer's stating that).
I tested the new Wathai fans individually in open air flow with the Ponie. The first fan measured 3.74 watts at 121.3Vac and 0.05 amps (power factor of 0.60) while the second fan measured 4.17 watts at 121.4Vac and 0.06 amps (same 0.60 pf). This is a big improvement over the same size and air flow rated AC muffin fans that use around 20-30 watts each. Based on these numbers the two new Wathai fans should pay for themselves in reduce electric consumption in just one heating season. Interestingly, with the two fans wired in parallel for my application, the Ponie showed the wattage fluctuating 0.05-0.1 watt. The wattage readings were very stable when testing one fan at a time.
Overall the quality of construction is very good. The supplied mounting bolts are long enough to go thru an 1/8” thick mounting surface, the supplied grill, and both sides of the fan. The fan frame is a plastic material rather than aluminum; but I didn't find any of the lower priced EC fans with aluminum frames. The 48” long power cord (if count the plug prong length it would be 49”) appears to be of good quality; but is constructed with only 20-22 gauge wires. If you don't use the cord with the fan I'd recommend throwing it away. The small wiring makes the cord suitable for only 30-40 watts max. The grill is nicely made and as shown is a shiny aluminum/chrome color (I'd rather had black grills; but didn't find that as an option). The included connector clip does the job; but I went ahead and soldered/shrink sleeved with the power cord from the old fans for my application.
I found a few negatives with the Wathai fan. I could not find any UL, CE or other international approvals for the fan or power cord. There's also no IP rating. There's no supplied locking washers. Most of the EC fans such as the Wathai are only single speed at this time. I could locate other brands with PWM/0-10Vdc variable speed control; but they were 2-4x the price. The power cord supplied with the fan doesn't have the wire ends stripped ready for installation in the clip so you'll have to do that when you get the fan. There aren't any instructions or a data sheet with the fan although it should be simple enough for most folks to setup/install. The label on the fan has no model/serial number (or a current rating like most muffin fans) so I'm guessing Wathai only offers this one model in this particular size. Finally, as another reviewer commented, there is RFI from the fan. My portable AM radio had an obvious buzzing noise over most of the AM band when I got it within one meter of the Wathai fan. My TV located about 3 meters away showed no problems with the fans and it is on the same electrical circuit. So pay attention to your application; this fan may not be the right choice for you.
On the positive side. The fan moves air similar to the 100 cfm DC fan I compared the airflow with and the Wathai fan is reasonably quiet. I'm fairly confident it's meeting the db noise level cited in the ad. Plus the price is so comparable to the old style, inefficient, AC muffin fans it's worth buying as it will save you enough in electricity consumption that it could pay for itself in no time.
Overall I'm very satisfied with the Wathai 120x38mm EC fan purchase. So far I've only used them a week; but if lasts as long as the 60,000+ hrs rating on the bearings I'll easily get my monies worth.
- Reviewed in the United States on October 27, 2025Style: 92x25mmVerified PurchaseVery nice nice and quiet and moves the air cools things down
- Reviewed in the United States on October 21, 2025Style: 80x25mmVerified PurchaseBought this as a cooling fan for a shrink wrap tunnel and worked great.
- Reviewed in the United States on March 31, 2025Style: 120x38mmVerified PurchaseI needed a replacement fan for our counter-top water cooler in our kitchen. This is the exact same size and just a little higher FPM than the original, so our unit is now even more efficient. It is a tad louder, but we had become accustomed to the noise of the old dying fan. Hopefully this fan will work as long as the original which was 12 years!
- Reviewed in the United States on April 26, 2025Style: 80x25mmVerified PurchaseI needed a small fan for a hot box I built to dry projects I worked on. This fit the bill and is able to provide proper level of air circulation without undo cooling affect.
The noise level is just enough to remind me to turn it off when I am done using it. Installation was easy and build quality is good. Not worried about looks, I use it in a small shop.
Top reviews from other countries
David BarkleyReviewed in Canada on October 11, 20255.0 out of 5 stars Great small fan, easy to install
Style: 60x25mmVerified PurchaseWorked as described, a little loud but moves a lot of air.
William Ching Wei LianReviewed in Singapore on June 6, 20255.0 out of 5 stars The Fan that really cool down things.
Style: 120x38mmVerified PurchaseThis fan work perfect. Almost silent and did a great job - cool down real fast.
catmomReviewed in Canada on January 24, 20255.0 out of 5 stars Nice fan!
Style: 120x38mmVerified PurchaseI like that this thing can run on a range of voltages. I needed it to run off 220vac, to go with a homemade heater in my pump house, where that's all the voltage I have. It's working just fine, continuous duty. I had no trouble with it whatsoever. Between this and a PTC heater element, I saved a bunch compared to what a commercial 220vac heater would have cost. It's nice and quiet, just enough noise to know that it is on.
Not disappointed!
MikeReviewed in Canada on October 27, 20244.0 out of 5 stars The size of the fan as I am not to familiar with the metric measurements
Style: 80x25mmVerified PurchaseThis product is being used in a smoking room and is not quite the size I wanted but it performs well…you should put the inches they are with the advertisement…I wanted a 4 inch square fan but this should do…
TorontoReviewed in Canada on December 4, 20245.0 out of 5 stars Not bad at all!!
Style: 60x25mmVerified PurchaseWasnt too sure about this brand but it was cheaper than the Noctua and Arctic fans...Needed this for a project I was making ..Its as quiet as those brands and great airflow..How long it will last time will tell but as of now the fan is very good.
Product summary presents key product information
Keyboard shortcut
shift
+
alt
+
opt
+
D
Product Summary: Wathai EC Industrial Case Fan 120mm x 38mm Ball Bearing 116 CFM AC 110V 115V 120V 220V 240V Brushless Cooling Fan 120x120x38mm
From Wathai
About this Item
- High Performance Fan: This EC axial fan consume very less power & better efficiency than AC equivalent. Designed for projects that requires cooling or ventilation; or as a replacement fan for various products
- Plug not Wired to The Fan: The wires were not connected. Pls understand that because of projects that a fan may be used in
- Dual-Ball: Bearings have a lifespan of 67,000 hours and allows the fans to be laid flat or stand upright. DIY as ventilation fan
- What's in the box: Package include: 1 Piece 120mm fan include fan grill and mounting screws & nuts; 1* AC cord with switch(about 38 inches); 1* Power Plug
- 5 Inch Fan: 120 x 120 x 38 mm ( 4.72 x 4.72 x 1.5 in. ) | Rated Voltage :90V to 270V | Airflow: 116 CFM | Power: 6.0W | Speed: 2800 RPM | Noise: 41dBA ; It as suitable for industrial or non-residential environments
Product Description
Newer Version Available
Wathai AC 110V 240V 120mm x 38mm Muffin Fan with Variable Speed Controller for Doorway, Room to Room, Wood Stove, Fireplace, Network Cabinet Circulation Cooling, 4.4 out of 5 stars, 118 ratings
This item cannot be shipped to your selected delivery location. Please choose a different delivery location.
Feedback
Did you find this product summary feature useful?










