here!
I’m your shopping assistant for PC builds, upgrades, and everything tech.
Got questions? Ask away!
Start a conversation
- Free 30-day Returns
$19.90
Meet Your Seller
Visit Be quiet! Store
FOLLOW
be quiet! LIGHT WINGS LX 140mm PWM high-speed BL129 140mm ARGB LED Case Fan
- 140mm
+
+
Specs
Reviews (19)
See all Q & A 
Any questions? Ask CelesteSM will help you find out quickly.
Try me now
Learn more about the be quiet! BL129
| Brand | be quiet! |
|---|---|
| Series | LIGHT WINGS LX 140mm PWM high-speed |
| Model | BL129 |
| Fan Counts | 1 Fan |
|---|---|
| Type | Case Fan |
| Fan Size | 140mm |
| Color | Black |
| LED | ARGB |
| First Listed on Newegg | March 19, 2026 |
|---|
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
- Read full details
- CONTACT
Return Policies
- Return for refund within: 30 days
- Return for replacement within: 90 days
- This item is covered by be quiet! Return Policy
Manufacturer Contact Info
- For a directory of all our manufacturers, please click below.
- Manufacturers Directory
LOADING...
The be quiet! LIGHT WINGS LX BL129 is a black, single 140mm PWM high-speed case fan with ARGB lighting, suited to PC builders who want to add a larger-format fan and customizable illumination to a compatible case.
Recommended For
- PC builders adding visible ARGB to a showcase case who want lighting from the fan hub and frosted blades, with effects controllable through a compatible 5V ARGB connection.
- Builders fitting a 140mm radiator or heatsink who want a PWM fan designed for airflow against resistance; the reviewer found its cooling performance more competitive above 1,000 RPM.
- Builders adding several matching Light Wings LX fans who want to link their ARGB lighting cables and reduce cable clutter; the ARGB cables daisy-chain, though the PWM cables do not.
- Users who want adjustable case or cooling airflow and expect to tune fan speed with a motherboard PWM header, rather than run the fan at one fixed speed.
Real-World Use Scenarios
- When adding intake or exhaust airflow to a PC case with a 140 mm mount, users can use the fan to move air through the case; PWM control lets them adjust its speed to suit cooling needs and noise tolerance.
- When fitting a fan to a compatible radiator or air-cooler heatsink, users can take advantage of the high-speed model’s pressure-focused design to push air through the restriction; check radiator screw length and case clearance before installation.
- In a build where the fan sits behind a grille or radiator, its closed-loop motor is designed to maintain the selected speed as resistance changes, helping keep airflow behavior more consistent than a fan that slows under resistance.
- For a gaming or multimedia PC where the owner wants visible internal lighting, the illuminated hub and frosted blades provide ARGB effects; connect the lighting to a compatible 5V ARGB header or controller.
- For a quieter everyday setup, users can set a lower PWM fan curve rather than run the high-speed fan at full speed; a reviewer recommends lower speeds for typical case-fan use and notes that the high-speed version is louder at maximum speed.