Be Quiet! Light Wings 120mm PWM or Be Quiet! Light Wings LX 140mm? Which Be Quiet! Model to Buy
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This comparison covers the be quiet light wings 120mm pwm argb gaming PC case vs light wings lx. Both models provide ARGB lighting and PWM speed control for your system. The main difference lies in their physical dimensions and bearing technology. The first option uses a 120mm form factor with seven optimized blades. The second features a larger 140mm design with rifle bearings. You need to decide which size and build quality best fits your case and airflow needs.
Key differences
| Aspect | be quiet! Light Wings 120mm PWM ARGB Triple Pack | be quiet! Light Wings LX 140mm ARGB Triple Pack |
|---|---|---|
| Fan Size | 120mm | 140mm |
| Color | Black | White |
| Bearing Type | not listed | Rifle |
| LED Count | 18 | 16 |
| Airflow Design | Seven silence-optimized blades | Blades optimized for maximum airflow with frame outlet |
Which one should you choose?
Choose be quiet! Light Wings 120mm PWM ARGB Triple Pack if
- You have a case that only supports 120mm fan mounts.
- You prefer a black color scheme to match your components.
- You want 18 LEDs for slightly more lighting density.
Choose be quiet! Light Wings LX 140mm ARGB Triple Pack if
- You need larger 140mm fans for better static pressure.
- You want rifle bearings for a rated 60,000-hour lifespan.
- You prefer a white color scheme for your build.
Verdict: Choose the 120mm model if your case requires smaller fans or you prefer black aesthetics. The 140mm model offers superior longevity with rifle bearings and better airflow potential. Your choice depends entirely on your case's mounting specifications and color preference.
Be Quiet Fan Comparison Guide
Fan Size
Product A uses 120mm fans, while Product B offers 140mm units. This size difference affects your airflow and noise levels. Larger 140mm fans move more air at lower speeds, often resulting in quieter operation. The 120mm fans in Product A are standard for many cases. You must check your case compatibility. Product B requires more space. If your case supports 140mm, Product B is the better choice for efficiency. If you have a smaller case, Product A fits without issues.
Lighting
Both models feature ARGB lighting for customization. Product A includes 18 LEDs per fan, providing bright illumination on the front and rear. Product B uses 16 LEDs located inside the hub, shining outward onto frosted blades. This design creates a distinct look. Product A allows synchronization via a hub for up to six components. Product B supports daisy-chaining through input and output connectors. Both options offer individual looks. The choice depends on your preferred lighting style and connection method.
Bearing Type
Product B specifies rifle bearing technology. This design is known for durability and a lifespan of 60,000 hours on average. Product A does not list its bearing type in the provided data. Rifle bearings are generally robust for long-term use. If longevity is a key factor for you, Product B has a clear advantage. The data confirms the bearing type for Product B, while Product A leaves this detail unspecified. You should consider this when planning your build.
Connectivity
Product A includes a hub to synchronize up to six ARGB components. This simplifies management for multiple fans. Product B features daisy-chain input and output connectors on the ARGB cable. This allows direct linking between fans without a separate hub. Both methods work well. The hub in Product A centralizes control. The daisy-chain in Product B reduces cable clutter. Your motherboard headers and case layout will determine which method suits your build better.
Airflow Design
Product B emphasizes optimized fan blades for maximum airflow and a frame outlet to minimize air leaks. This design aims for efficiency. Product A mentions seven silence-optimized blades to reduce turbulence. Both designs target performance. Product B focuses on airflow and leak reduction. Product A focuses on noise reduction through blade shape. If you need high airflow, Product B is strong. If you prioritize low noise, Product A is a solid option.
Choose the right Be Quiet fan
Users with 120mm case slots
Your case requires 120mm fans. This pack includes three units plus a hub. The hub syncs up to six ARGB components. It features seven silence-optimized blades for high airflow. The PWM connector allows precise speed control. This fits your physical constraints while delivering the lighting effects you want.
Users with 140mm case slots
Your case has 140mm mounting options. These fans move more air at lower speeds. The rifle bearing offers a lifespan of 60,000 hours. The frame outlet minimizes air leaks. The LEDs shine outward onto frosted blades. This setup provides better cooling efficiency and durability for larger chassis configurations.
Users wanting daisy-chain ARGB
This model supports daisy-chaining via input and output connectors. You can link multiple fans together. The 16 LEDs in the hub create a distinct look. The PWM control ensures quiet operation. This connection method simplifies your cable management. It is ideal if you want a unified lighting stream across your build.
The products compared
be quiet! Light Wings 120mm PWM ARGB Triple Pack
Best for: 120mm cases needing synchronized ARGB lighting
- Fan Size
- 120mm
- Noise Level
- Max. 20.6dB(A)
- Connector Type
- PWM
- Bearing Type
- Rifle
- Lighting Type
- ARGB
- Use
- Gaming
View on Amazon: be quiet! Light Wings 120mm PWM ARGB Triple Pack Affiliate link
This pack includes three 120mm fans and one ARGB hub. The fans use PWM connectors for speed control and feature 18 LEDs for lighting. You get seven silence-optimized blades designed for high airflow with low noise. The hub syncs up to six ARGB components. This set suits builders who want synchronized lighting and efficient cooling in a compact 120mm form factor.
Pros
- Includes three 120mm fans and one ARGB hub
- PWM connectors allow for precise speed control
- 18 LEDs provide multiple colors and modes
- Hub synchronizes up to six ARGB components
Cons
- 120mm size offers less airflow than 140mm options
- Requires separate motherboard header for ARGB sync
- Black color limits aesthetic options for white builds
Good fit if
- You need a triple pack of 120mm fans
- You want synchronized ARGB lighting across components
- You prioritize low noise with high airflow
Skip if
- You require 140mm fans for maximum cooling
- You are building a white-themed PC
- You need fans with integrated RGB controllers
Verdict: Be Quiet! Light Wings 120mm PWM ARGB is a practical choice for builders who need a matched set of 120mm fans with centralized ARGB control. It fits cases that support 120mm mounts and users who value quiet operation alongside customizable lighting.
be quiet! Light Wings LX 140mm ARGB Triple Pack
Best for: 140mm cases needing bright white lighting
- Fan Size
- 140mm
- Bearing Type
- Rifle
- Lighting Type
- ARGB
- Use
- Gaming
- Dimensions
- 6.18 × 5.63 × 3.15 inches
- Weight
- 1 pounds
View on Amazon: be quiet! Light Wings LX 140mm ARGB Triple Pack Affiliate link
The Be Quiet! Light Wings LX 140mm fan uses rifle bearings and 16 internal LEDs to shine light through frosted blades. This triple pack offers large 140mm airflow for better cooling performance. The daisy-chain ARGB cable simplifies lighting setup. It suits builders who want quiet operation and bright, uniform illumination in white-themed cases.
Pros
- 140mm size provides maximum airflow
- 16 LEDs create uniform illumination
- Rifle bearing lasts 60,000 hours
- Daisy-chain ARGB cable included
Cons
- Larger 140mm size requires compatible case
- ARGB requires motherboard or controller
- White color limits dark case options
Good fit if
- You have a case with 140mm mounting slots
- You want bright, uniform case lighting
- You prioritize airflow over noise
Skip if
- You only have 120mm mounting slots
- You prefer black components
- You want silent PWM fans without lighting
Verdict: Be Quiet! Light Wings LX 140mm White ARGB fits builders with 140mm slots who want bright lighting and strong airflow. It delivers reliable performance for white-themed builds.
Specifications side by side
| Spec | be quiet! Light Wings 120mm PWM ARGB Triple Pack | be quiet! Light Wings LX 140mm ARGB Triple Pack |
|---|---|---|
| Fan Size | 120mm | 140mm |
| Noise Level | Max. 20.6dB(A) | not stated |
| Connector Type | PWM | not stated |
| Bearing Type | Rifle | Rifle |
| Lighting Type | ARGB | ARGB |
| Use | Gaming | Gaming |
| Lighting | ARGB | ARGB |
| Dimensions | 4.72 × 4.72 × 0.98 inches | 6.18 × 5.63 × 3.15 inches |
| Weight | 7.05 ounces | 1 pounds |
| Size | 3 x 120mm | 3 x 140mm |
| Color | Black | White |
| Model | BL076 | BL128 |
Frequently asked questions
Can I use the 120mm fans in a 140mm case slot?
No, the physical dimensions do not match. The 120mm fans measure 4.72 inches wide and 0.98 inches high. The 140mm fans measure 5.63 inches wide and 3.15 inches high. You must buy the fan size that matches your case mounting holes exactly.
Do both fan packs include a hub for ARGB control?
The 120mm triple pack includes a hub. This hub syncs up to six ARGB components for centralized lighting control. The product data for the 140mm pack does not list a hub. You may need to check if your motherboard supports direct ARGB connection for the larger fans.
Which model is better for a white themed PC build?
The 140mm Light Wings LX is the better choice. It comes in a white color option. The 120mm model is available in black. If you want bright white lighting to match your chassis, the LX pack fits your aesthetic needs.
How many fans come in each triple pack?
Both products are sold as triple packs. The 120mm model includes three 120mm fans. The 140mm model includes three 140mm fans. You get a matched set of three units in each box for consistent airflow and lighting across your case.
Does the 140mm fan pack have PWM speed control?
The comparison guide states both models provide PWM speed control. This allows your motherboard to adjust fan speeds based on temperature. The 140mm fans use this technology to manage noise and airflow efficiently without requiring manual fan curve adjustments.
Which fan is heavier and takes up more space?
The 140mm fans are larger and heavier. They measure 6.18 inches in length and weigh one pound for the pack. The 120mm fans are smaller at 4.72 inches long and weigh 7.05 ounces. The 140mm units occupy more physical volume inside your case.

