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White 240mm liquid cooler with two 120mm ARGB fans and illuminated CPU block

be quiet!

be quiet! Light Loop 240mm White liquid cooler BW021

SKU CH-H6R9-HG0ZB MPN BW021

A 240 mm liquid cooler with 48 ARGB LEDs and two 120 mm PWM high-speed fans for heavily overclocked CPUs

  • TypeLiquid Cooling System
  • Block CompatibilityAMD Socket AM4 / AMD Socket AM5 / Intel LGA 1150 / Intel LGA
  • Fan Size2 Fan Slots (120 mm)
  • ColorWhite
  • LED ColorARGB

Fan Size 2 Fan Slots (120mm)

Color White

  • 48 LEDs create vivid ARGB lighting across block and fans
  • Two 120 mm PWM high-speed fans push airflow for heavy overclocks
  • Nine optimised blades per fan cut turbulence and noise
  • Broad socket support covers AMD AM4, AM5 and Intel LGA 1150 to 1851
  • White finish with ARGB accents matches clean build themes

240 mm ARGB liquid cooler for overclocked CPUs

The be quiet! Light Loop 240mm White is a closed-loop liquid cooler built for heavily overclocked systems. It mounts on AMD Socket AM4, AM5 and Intel LGA 1150, 1151, 1155, 1200, 1700 and 1851 platforms. Forty-eight addressable RGB LEDs illuminate the cooling block and both fans for a coordinated light show.

Two 120 mm PWM fans and an integrated ARGB-PWM hub

Two Light Wings LX 120 mm PWM high-speed fans in white push air through the 240 mm radiator. Each fan carries 16 LEDs and nine airflow-optimised blades that reduce turbulence. The included hub consolidates ARGB and PWM cables so the motherboard sees a single connection for lighting and speed control.

Sustained cooling under peak CPU loads

The loop delivers impressively high cooling power that keeps temperatures low during extended periods of peak CPU performance. Fan curves can be tuned via PWM for quieter operation when the load eases. Builders who need a larger radiator or a different socket not listed here should look at other models.

Highlights

  • 48 LEDs create vivid ARGB lighting across block and fans
  • Two 120 mm PWM high-speed fans push airflow for heavy overclocks
  • Nine optimised blades per fan cut turbulence and noise
  • Broad socket support covers AMD AM4, AM5 and Intel LGA 1150 to 1851
  • White finish with ARGB accents matches clean build themes

Specifications

Brandbe quiet!
SeriesLIGHT LOOP
ModelBW021
TypeLiquid Cooling System
Block CompatibilityAMD Socket AM4 / AMD Socket AM5 / Intel LGA 1150 / Intel LGA 1151 / Intel LGA 1155 / Intel LGA 1200 / Intel LGA 1700 / Intel LGA 1851
Fan Size2 Fan Slots (120 mm)
ColorWhite
LED ColorARGB
Shipping weight0.91 kg
Package size330 × 203 × 152 mm

Other versions of this model

2 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

What is the radiator length that limits case clearance for the Light Loop 240mm?

The radiator is 240 mm long and uses two 120 mm fan slots, so your case must support a 240 mm radiator with 120 mm fans.

How many ARGB LEDs are in the cooling block and fans, and do they add noticeable heat?

The block and two Light Wings LX fans contain 48 ARGB LEDs in total; LED heat output is negligible and does not affect coolant temperature.

Which CPU socket mounting hardware is included with the BW021 cooler?

The package includes brackets for AMD AM4, AM5 and Intel LGA 1150, 1151, 1155, 1200, 1700 and 1851 sockets.

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