be quiet! Light Wings LX 140mm PWM Fan, Illuminated hub, Frosted Fan Blades

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💡 How to pick case fans

What to look for:

120mm most common, 140mm moves more air quieter
Higher CFM = more airflow, higher dBA = more noise
Static pressure fans for radiators, airflow fans for cases

💰 Two intake + one exhaust is a solid baseline for positive pressure

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ProductSizeAirflowNoiseColorRGBRGB TypeRGB ConnectorValuePrice

Light Wings LX 140mm PWM Fan, Illuminated hub, Frosted Fan Blades

be quiet!★★★★★4.6🔥 DEAL -$4Sold by be-quiet-official via Amazon

140mm

71.4 CFM

20.6dBA

Library quiet

Black

Yes

ARGB

—

$23.90

$19.90

Specifications

Size140mm

Pack1

RPM1700

Airflow71.4 CFM

Noise20.6dBA Library quiet

PWMYes

RGBYes

RGB TypeARGB

ColorBlack

Weight165 Grams

PERFORMANCE

76%

Customer Reviews★★★★★5.0 · 5 reviews

★★★★★Overall Great purchase, perfect for any build!

Amazing fans, quiet, and nice colours, can even set individual colours with certain apps!, Airflow is great, Cooling is great with good low temps, and works perfectly with ease of access.

Taeo Jindou · 2026-02-12 · via amazon

★★★★★Very good fan and good value.

Older but more cost effective.  RGB looks better than most still, very quiet.

Don H · 2026-03-26 · via amazon

★★★★★Quiet!

I am a massive fan (no pun intended) of these fans. I am using 5 of them (all as in-take); these are quiet up until 40% power and move a good amount of air.  They fit any traditional 140mm spots. The ARGB can be daisy chained out of the box; the power is a single 4 pin PWM connector. These are among the only case fans that do not exhibit the oscillating "hum" that is prevalent in other case fans. The ARGB is strong and vibrant.  If you like little to no noise coming from your PC outside of your CPU fan, these are the play.

Daniel Krause · 2026-02-10 · via amazon

★★★★★Quiet with satisfactory lighting

Does what it says on the box; it's a quiet fan w/ RGB and standard cables. It's a little dated by today's standards of snap together fans with mirror stickers and side LEDs, but these still look great and more importantly are *quiet*. When I spin them up to 100% the primary noise is the sound of air moving, not of the fan whining at me. I use Lightwings and Lightwings LX in two computers, and at this point I'm not even going to look at other brands, I've always been disappointed and just end up ordering Be Quiet in the end. Pretty standard installation ease, just requires zip ties to handle all the excess cabling and a PWM splitter if you want to link 2+ together.

Sean · 2025-10-24 · via amazon

★★★★★Amazing performance and value

Bought these to build my wife's computer for her birthday. After a year, they're still running strong and the colors are vibrant. Keeps my wife's gaming rig cool even on hot days here in Texas. Installation was a breeze. be quiet makes great products.

Infinite01 · 2026-01-31 · via amazon

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Sold by be-quiet-official via Amazon

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