be quiet! Light Wings 140mm PWM Low Noise Premium ARGB Cooling Fan | 4-Pin | 3-Pack | Black | BL078
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Availability:
In Stock.
Arrives
Wednesday, Sep 30
Color: Black
Size: 3 x 140mm
Set name: PWM
Features
- Three fans included and one HUB
- ARGB lighting on front and rear
- Multiple colors and modes for an individual look thanks to 20 LEDs
- ARGB Hub allows synchronization of up to six ARGB components
- Seven silence-optimized fan blades for high airflow and low noise-generating turbulences
Description
Three Light Wings 140mm PWM offer impressive illumination for a vibrant unique look, strong performance and quiet operation with efficient cooling. • Three fans included • ARGB lighting on front and rear • Multiple colors and modes for an individual look thanks to 20 LEDs • ARGB Hub allows synchronization of up to six ARGB components • Seven silence-optimized fan blades for high airflow and low noise-generating turbulences • Very quiet operation with max. 23.3dB(A) • Long life rifle-bearing gives an operating lifetime of 60,000 hours • PWM fan speed controlled by the motherboard • Three-year manufacturer’s warranty • Product conception, design and quality control in Germany
Product Dimensions: 5.51"L x 5.51"W x 0.98"H
Brand: be quiet!
Power Connector Type: 4-Pin
Voltage: 12 volts
Wattage: 3.9 watts
Cooling Method: Fan
Compatible Devices: Radiator
Noise Level: 23.3 db
Material: Copper
Maximum Rotational Speed: 1500 rpm
Power Connector Type: 4-Pin
Voltage: 12 volts
Wattage: 3.9 watts
Cooling Method: Fan
Compatible Devices: Radiator
Noise Level: 23.3 db
Maximum Rotational Speed: 1500 rpm
Air Flow Capacity: 56 cfm
Item Dimensions L x W x H: 5.51"L x 5.51"W x 0.98"H
Material Type: Copper
Brand Name: be quiet!
Global Trade Identification Number: 28
Set Name: PWM
Warranty Description: 1 year
Number of Packs: 3
Manufacturer: be quiet!
Number of Items: 3
Unit Count: 1 Count
Included Components: Fan
Item Weight: 20 g
Model: BL078
Part Number: BL078
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Sep 30
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: White
Size: 3 x 120mm
Set name: PWM
These fans look great and are extremely quiet. Installation was easy, and connectivity was straightforward with no issues getting everything hooked up and running. Fan speed and cooling performance have both been great so far, while keeping noise impressively low. Considering you get three quality ARGB fans in the pack, I think they're a good value for the money. Couldn't be happier with the performance or appearance.
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Reviewed in the United States on August 19, 2026 by Daniel
Color: White
Size: 3 x 120mm
Set name: PWM
Incredibly quiet fans! Note that they push a LOT of air; so if cranked to full, as cases will sometimes do by default, they will produce a lot of air movement noise. Having a good fan speed controller will mitigate any issues there. Great leds, awesome fans.
Reviewed in the United States on August 9, 2026 by Raltheb
Color: White
Size: 3 x 120mm
Set name: PWM
These fans are literally beautiful. One thing I really love about them is the rgb. It's not too much but it's not too little either. The fans keep my pc very cool and I feel they will have a long life. But that's not exactly confirmed until then. They are easy to use as I have a hub that they are connected to. These were worth the amount I paid for 3 packs of 3. They might be the best fans that I've come across in a while. And that's coming from someone who has used Asus and Corsair fans.. In the video, some fans are flipped for better airflow but even with that, they still look good.. I highly recommend.
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Reviewed in the United States on September 23, 2025 by Shaunna
Color: Black
Size: 3 x 120mm
Set name: PWM
This review is for the standard non-HS model. These run at lower RPMs but are a little quieter and optimized for air flow rather than static pressure. I did a bit of research before buying these. Case fans can be a more complicated purchase than you'd expect; when trying to balance noise, performance, and price there's a lot to think about - throw in aesthetics and it gets even worse. As someone who likes high visibility "fish tank" cases RGB was important to me but I still wanted good performance. At this price I don't think you'll find another fan that checks all of those boxes. Corsair has a similar offering but sound tests showed they had a more grating high pitch noise despite emitting objectively lower decibels. The light wings at full spin emit more of a low whooshing noise which is easily ignored. Even with six of them mounted on my case max RPM is tolerable, although their air flow is so effective that I never reach these speeds under normal use. I kept my old fans at 30% voltage because their noise was intolerable so I had significant ambient temperatures inside the case during long gaming sessions, at worst going 20°F above room temperature. Now that differential has shrunk to 14°F at worst and my GPU and CPU stay cool and spin their fans up much less, resulting in a much quieter system beyond the fans themselves. (see the graph pic. readings are taken with an Aranet 4 inside the case) The aesthetics could be better but they certainly aren't bad, especially for a component that is more often heard than seen even in a case like mine. Maybe I'm gushing a bit but knowing how well they perform adds to the aesthetics in a way. To do better you'd have to pay double for Lian Li SL120's or similar. Long review short I will not be skimping on fans for any of my future builds. These light wings are my new baseline for performance and value.
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Reviewed in the United States on April 28, 2024 by James Kelly
Color: White
Size: 3 x 120mm
Set name: PWM
Fantastic. Work and look great. Added to gaming build. No complaints.
Reviewed in the United States on May 19, 2026 by Bryan Moraski
Color: Black
Size: 3 x 120mm
Set name: PWM
I decided to buy these fans to add some aesthetic RGB to my build, running them as rear and top case fans inside my Fractal Design North. If you look at reviews, you will see that these do not necessarily perform the best compared to other options on the market, especially if you use them on a CPU tower cooler, radiator, or in a case with restricted air flow. However, since the North is fairly open, I figured these would work well enough and for that reason I opted for the non-high speed version. I was right that they would work well. Combined, they pull air well as exhaust fans in this case and help keep my system fairly cool. Using the stock 140 mm intake fans along with a Phantom Spirit on my 9800x3d, my CPU temps stay within 50 to 60 something C and my Sapphire Pulse 9070XT stays below 60 C (ambient temp about 70-80F) with all settings cranked up in the latest games. I haven't tested them thoroughly enough to say exactly how much these fans specifically are helping, but overall the cooling is performing well. Not only are they effective, but these fans are not noisy at all with the custom fan curve I am using. In fact, of all the fans in my case, these are the quietest and the noise they do give off is pleasant. This could be a bit of a trade off because they may not move as much air as others, but I think they offer a decent balance of cooling performance, noise, and aesthetics. I ultimately didn't purchase these for raw performance as I figured most fans would work well enough as exhaust in the North, and I really like how they look. Aesthetics are subjective, but I like the RGB ring from the front and the fact that I can see the rear view RGB ring from the top of my case. My only gripe, and the reason why I took one star off, is related to installation. The RGB component gives you options to chain them together or use a hub. I used the hub which works great but it only works for the RGB component. Unfortunately, the fans do not come with an option to chain the fan power cables together or connect to the hub. Instead, you have to either buy a separate splitter, get a dedicated fan hub, or use three separate fan headers. My motherboard fan header placement was a little awkward for rear and top fans, so I had to get creative to make it work. I figured it out in the end, but I really wish they had included at least one splitter in the three pack to make the process easier. Splitters are not that expensive so it is not a big deal, but it is something to note. In the end, I would recommend these fans for their aesthetic quality and for offering decent cooling performance in the right circumstances like an easy, open airflow case. Just be sure to plan ahead for the installation! On a separate note, I have used Be Quiet's fans in the past and have been pleased by their build quality and longevity, having run a pair of silent wings in my last systems over 6 years with no issues so I am hoping these will also offer a similar life span.
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Reviewed in the United States on May 2, 2026 by RJ
Color: Black
Size: 3 x 140mm
Set name: PWM
These fans have beautiful RGB lighting and they are reasonably priced. This was a 3 pack, and I installed the three fans in the bottom of my Be Quiet! 900FX Case for intake fans. I wish I could find them in a reverse fan blade. The fans look great and work great! They are quiet and easy to install.
Reviewed in the United States on October 23, 2025 by Kevin Cureton
Color: White
Size: 3 x 140mm
Set name: PWM
These are case fans. I have these moving air out of the case. I have some slightly stronger relatives (i.e. same brand) moving air in. This result in some positive air pressure in the case which is desirable. They live up to their name - they are quiet.
Reviewed in the United States on January 30, 2026 by Anonymous George