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Fractal Design Lumen S24 v2 RGB AIO CPU Liquid Cooler
Fractal Design

Fractal Design Lumen S24 v2

Expert rating7.3 / 10

View on AmazonView on fractal-design.com
Cooler Type:
AIO Liquid
Radiator Size:
240 mm
Fans:
2x Aspect 12 RGB PWM
Lighting:
ARGB

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Manufacturer: Fractal Design Last updated: 2026-09-12

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Fractal Design Lumen S24 v2 Review

Fractal Design Lumen S24 v2 240mm AIO liquid cooler, second-generation refresh, 2x Aspect 12 RGB PWM fans, RGB pump ring, 220W TDP, AM4/AM5/LGA1700 support, budget-friendly.

The v2 refresh of Fractal's Lumen line improves pump acoustics and fan blade design over the original S24 while keeping the price positioned below the Celsius+ series, aimed at builders who want a 240mm loop and a bit of RGB without stepping up to Fractal's flagship pricing.

Comparison to Alternatives

It's the budget counterpart to the Celsius+ S36 in Fractal's own range, same brand design philosophy, smaller radiator and lower price. Against the Corsair H100x, the Lumen S24 v2 adds RGB lighting the H100x deliberately omits, at a broadly similar price point.

Our verdict

Reviewed by Burooj Alam. Rated by us, not by users.

Expert rating7.3 / 10

A budget-friendly 240mm AIO that adds tasteful RGB without a big price jump.

Best for

  • Budget 240mm-radiator builds wanting some RGB
  • Fractal Design case owners
  • First-time AIO buyers

Not for

  • High-TDP flagship CPUs needing 360mm cooling
  • Buyers wanting maximum RGB brightness/effects
  • Extreme silence priorities

Specifications

What these specs mean

Identity

BrandFractal Design
SeriesFractal Design Lumen S24 v2
Model NumberFD-W-L1-S2412

Design

Cooler TypeAIO Liquid
Radiator Size240 mm
Socket CompatibilityIntel LGA1851/1700/1200/1150/1151/1155/1156/1366/2011/2011-3/2066, AMD AM5/AM4/FM2+/FM2/FM1/AM3+/AM3/AM2+/AM2

Performance

Fan Count2
Noise Level33.2 dBA
RGB LightingYes

Cooler class

Tower LayoutNot Applicable

Liquid loop hardware

Radiator Thickness27 mm
Tube Length400 mm
Pump Max Speed4000 RPM

Fans

Fan Size120 mm
Max Speed2000 RPM
Airflow56 CFM
Static Pressure2.34 mmH2O
Bearing TypeRifle
PWM ControlYes

Lighting and display

LightingARGB

Ownership

Warranty5 years

FAQs

What are the key specifications of the Fractal Design Lumen S24 v2 (240mm AIO Liquid/2x Dynamic PWM Fans/RGB Pump Ring/Budget-Friendly Refresh)?

Key specs for the Fractal Design Lumen S24 v2: Noise Level 33.2 dBA, Radiator Size 240 mm, Cooler Type AIO Liquid, Tower Layout Not Applicable, Radiator Thickness 27 mm, Tube Length 400 mm.

Will the Fractal Design Lumen S24 v2 (240mm AIO Liquid/2x Dynamic PWM Fans/RGB Pump Ring/Budget-Friendly Refresh) work with my current setup?

The Fractal Design Lumen S24 v2 (240mm AIO Liquid/2x Dynamic PWM Fans/RGB Pump Ring/Budget-Friendly Refresh) lists Socket Compatibility is Intel LGA1851/1700/1200/1150/1151/1155/1156/1366/2011/2011-3/2066, AMD AM5/AM4/FM2+/FM2/FM1/AM3+/AM3/AM2+/AM2. 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 Fractal Design Lumen S24 v2 (240mm AIO Liquid/2x Dynamic PWM Fans/RGB Pump Ring/Budget-Friendly Refresh) best suited to?

Best suited to: Budget 240mm-radiator builds wanting some RGB; Fractal Design case owners; First-time AIO buyers.

What are the drawbacks of the Fractal Design Lumen S24 v2 (240mm AIO Liquid/2x Dynamic PWM Fans/RGB Pump Ring/Budget-Friendly Refresh)?

Not the best fit for: High-TDP flagship CPUs needing 360mm cooling; Buyers wanting maximum RGB brightness/effects; Extreme silence priorities.

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