be quiet! Light Wings 140mm PWM high-speed
Expert rating8 / 10
- Fan Size:
- 140mm
- Bearing Type:
- Fluid Dynamic
- Lighting:
- ARGB
- Airflow:
- 75.3 CFM
- Static Pressure:
- 2.1 mmH2O
- Max Speed:
- 1800 RPM
- Noise Level:
- 30.5 dBA
- PWM Control:
- Yes
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Manufacturer: be quiet! Last updated: 2026-09-12
be quiet! Light Wings 140mm PWM high-speed (140mm/75.3 CFM/2.1 mmH2O Static Pressure/1800 RPM Max/30.5 dBA/Fluid Dynamic Bearing/ARGB/PWM) Review
be quiet! Light Wings 140mm PWM high-speed 140mm case fan, 75.3 CFM airflow, 2.1 mmH2O static pressure, 1800 RPM max, 30.5 dBA, Fluid Dynamic bearing, ARGB, PWM control. be quiet!'s ARGB fan line, with the high-speed 140mm variant aimed at builders who want lighting without giving up airflow.
Light Wings brings be quiet!'s acoustic engineering to an ARGB fan for the first time in the brand's modern lineup, and the 140mm high-speed variant is the airflow-focused option within that range. A halo-style ring diffuses the ARGB lighting evenly around the frame, while the fluid dynamic bearing and be quiet!'s usual blade tuning keep noise in check even as RPM climbs toward 1800.
ARGB Ring Design
The lighting sits in a translucent ring around the fan's perimeter rather than a handful of hub-mounted LEDs, producing a more even glow through a case window and avoiding the visible hotspot look of cheaper ARGB fans.
High-Speed Variant Positioning
be quiet! sells Light Wings in both a standard and high-speed configuration; the high-speed version tested here trades a bit of extra noise ceiling for a genuinely higher airflow number (75.3 vs. roughly 56 CFM on the standard variant), better suited to case intake duty than pure ambience.
Comparison to Alternatives
Against the Noctua NF-A14 PWM, the Light Wings high-speed moves slightly less air but adds ARGB lighting the Noctua entirely lacks, at a modest noise penalty. Compared to the be quiet! Silent Wings 4 120mm PWM High-Speed already in this catalog, the Light Wings trades some of that fan's ultra-quiet reputation for lighting and a larger 140mm frame.
Specifications
Identity and packaging
| Brand | be quiet! |
|---|---|
| Model | Light Wings 140mm PWM high-speed |
| Fan Thickness | 25 mm |
| Pack Quantity | 1 |
Design
| Fan Size | 140 mm |
|---|---|
| Bearing Type | Rifle |
| Lighting | ARGB |
Performance
| Static Pressure | 2.3 mmH2O |
|---|---|
| Max Speed | 2200 RPM |
| Noise Level | 31 dBA |
| PWM Control | Yes |
Performance at maximum speed
| Airflow | 71.7 CFM |
|---|
Motor and bearing
| Rated Life | 60000 hours |
|---|
Power and control
| Max Power Draw | 4.7 W |
|---|
Connection and daisy chain
| Connector Type | 4-Pin PWM |
|---|---|
| Lighting Connector | 3-Pin 5V ARGB |
| Daisy Chain Support | Yes |
Lighting
| RGB Lighting | Yes |
|---|---|
| Lighting Type | ARGB 5V |
| LED Count | 20 |
Physical and finish
| Colorway | Black |
|---|---|
| Cable Length | 500 mm |
| Weight | 251 g |
Market
| Warranty | 3 years |
|---|---|
| Positioning | Mainstream |
| Source URL | https://www.bequiet.com/en/casefans/3455 |
|---|
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating8 / 10
The rare ARGB fan that keeps be quiet!'s acoustic discipline intact.
Best for
- ARGB case intake/exhaust wanting real airflow
- Builders loyal to be quiet!'s acoustic tuning who still want lighting
- 140mm front-panel installs
Not for
- Pure silence at max speed (use the standard, non-high-speed variant)
- Radiator duty needing high static pressure
- Budget builds
FAQs
What are the key specifications of the be quiet! Light Wings 140mm PWM high-speed (140mm/75.3 CFM/2.1 mmH2O Static Pressure/1800 RPM Max/30.5 dBA/Fluid Dynamic Bearing/ARGB/PWM)?
The be quiet! Light Wings 140mm PWM high-speed (140mm/75.3 CFM/2.1 mmH2O Static Pressure/1800 RPM Max/30.5 dBA/Fluid Dynamic Bearing/ARGB/PWM) is a case fan from be quiet!. Key specs: Fan Size 140, Bearing Type Fluid Dynamic, Lighting ARGB, Airflow 75.3, Static Pressure 2.1.
Will the be quiet! Light Wings 140mm PWM high-speed (140mm/75.3 CFM/2.1 mmH2O Static Pressure/1800 RPM Max/30.5 dBA/Fluid Dynamic Bearing/ARGB/PWM) work with my current setup?
The be quiet! Light Wings 140mm PWM high-speed (140mm/75.3 CFM/2.1 mmH2O Static Pressure/1800 RPM Max/30.5 dBA/Fluid Dynamic Bearing/ARGB/PWM) lists Fan Size is 140. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.
Who is the be quiet! Light Wings 140mm PWM high-speed (140mm/75.3 CFM/2.1 mmH2O Static Pressure/1800 RPM Max/30.5 dBA/Fluid Dynamic Bearing/ARGB/PWM) best suited to?
It suits argb case intake/exhaust wanting real airflow, builders loyal to be quiet!'s acoustic tuning who still want lighting, 140mm front-panel installs.
What are the drawbacks of the be quiet! Light Wings 140mm PWM high-speed (140mm/75.3 CFM/2.1 mmH2O Static Pressure/1800 RPM Max/30.5 dBA/Fluid Dynamic Bearing/ARGB/PWM)?
It is a poor fit for pure silence at max speed (use the standard, non-high-speed variant), radiator duty needing high static pressure, budget builds.
Compare and read more
- be quiet! Light Wings 140mm PWM high-speed (140mm/75.3 CFM/2.1 mmH2O Static Pressure/1800 RPM Max/30.5 dBA/Fluid Dynamic Bearing/ARGB/PWM) vs Corsair QX120 RGB (120mm/65.8 CFM/3.29 mmH2O Static Pressure/2500 RPM Max/34 dBA/Magnetic Dome Bearing/RGB/iCUE LINK)
- be quiet! Light Wings 140mm PWM high-speed (140mm/75.3 CFM/2.1 mmH2O Static Pressure/1800 RPM Max/30.5 dBA/Fluid Dynamic Bearing/ARGB/PWM) vs Lian Li UNI FAN TL120 (120mm/61.6 CFM/2.49 mmH2O Static Pressure/2050 RPM Max/28.5 dBA/Fluid Dynamic Bearing/ARGB/PWM/Reverse Blade)
- be quiet! Light Wings 140mm PWM high-speed (140mm/75.3 CFM/2.1 mmH2O Static Pressure/1800 RPM Max/30.5 dBA/Fluid Dynamic Bearing/ARGB/PWM) vs Lian Li UNI FAN TL140 (140mm/74 CFM/1.9 mmH2O Static Pressure/1900 RPM Max/28 dBA/Fluid Dynamic Bearing/ARGB/PWM/Reverse Blade)
- be quiet! Light Wings 140mm PWM high-speed (140mm/75.3 CFM/2.1 mmH2O Static Pressure/1800 RPM Max/30.5 dBA/Fluid Dynamic Bearing/ARGB/PWM) vs Noctua NF-S12A PWM (120mm/44.9 CFM/1.06 mmH2O Static Pressure/1200 RPM Max/17.8 dBA/SSO Bearing/No RGB/PWM)
- be quiet! Light Wings 140mm PWM high-speed (140mm/75.3 CFM/2.1 mmH2O Static Pressure/1800 RPM Max/30.5 dBA/Fluid Dynamic Bearing/ARGB/PWM) vs Thermalright TL-B12 (120mm/68.9 CFM/2.27 mmH2O Static Pressure/1500 RPM Max/25.6 dBA/S-FDB Bearing/No RGB/PWM)