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Be Quiet! Light Loop 240mm specifications and in-depth review

Be Quiet! Light Loop 240mm

Manufacturer: Be Quiet!

The Be Quiet! Light Loop 240mm is a 240mm all-in-one liquid cooler designed for desktop processors, combining a dual-fan radiator setup with RGB lighting for those who want both thermal management and visual customization in one unit. The cooler ships with thermal paste included, covering the essentials out of the box, and carries a three-year warranty alongside broad socket compatibility spanning Intel and AMD platforms including LGA 1851, LGA 1700, AM4, and AM5.

On the performance side, the two rifle bearing fans spin up to 2100 RPM and together deliver a maximum airflow of 105.1 CFM, while the pump reaches up to 2900 RPM. Noise output ranges from a low of 15.4 dB at minimal load to 34.9 dB at full speed. The 240mm radiator measures 277mm in length, 120mm in width, and 27mm in thickness, with the water block itself coming in at 82mm tall, 94mm wide, and 75mm deep. Total unit weight is 1200g.

Pros
  • Supports a wide range of Intel and AMD sockets, including LGA 1851, LGA 1700, AM4, and AM5, making it compatible with many current desktop platforms
  • Thermal paste is included in the box, removing the need for a separate purchase before installation
  • RGB lighting is built in for users who want visual customization in their build
  • The radiator is only 27mm thick, which suits most standard case mounting positions without requiring excessive clearance
  • A three-year warranty period provides a reasonable coverage window for a liquid cooling unit
Cons
  • With a maximum fan noise level of 34.9 dB, the cooler can become audible under sustained full load
  • A 240mm radiator offers less surface area for heat dissipation compared to larger 280mm or 360mm radiator formats
  • The unit weighs 1200g, which adds notable mass to the case and may affect handling during installation
  • No built-in display is available for those who want pump speed or temperature readouts directly on the cooler head
Who is this for?

This cooler is a practical choice for users building systems around current Intel and AMD platforms, given its broad socket support across LGA 1851, LGA 1700, AM4, and AM5. The 27mm radiator thickness and standard 240mm form factor make it well-suited to mid-tower cases with conventional radiator mounts, and the included thermal paste and RGB lighting appeal to builders who want a straightforward, visually cohesive setup without sourcing extra components. The rifle bearing fans and a minimum noise floor of 15.4 dB also make it reasonable for quiet or semi-quiet desktop environments during light to moderate workloads.

Who is this NOT for?

Users running thermally demanding workloads over extended periods may find the 240mm radiator surface area insufficient to maintain low temperatures under sustained heavy load, where larger 280mm or 360mm solutions would offer more headroom. At full fan speed the cooler reaches 34.9 dB, which makes it less suited to noise-sensitive environments such as recording spaces or near-silent workstation setups. Additionally, builders working inside compact or small-form-factor cases may struggle to accommodate the 277mm radiator length and 1200g total weight, depending on case constraints.

Cooling:

Cooling type AIO liquid
Max fan RPM 2100 rpm
Max pump RPM 2900 rpm
Max airflow 105.1 CFM
Number of fans 2

The Light Loop 240mm uses an AIO liquid cooling setup driven by two fans that reach a maximum speed of 2100 RPM, working alongside a pump rated up to 2900 RPM. Together, the fans are capable of moving up to 105.1 CFM of airflow at their peak, giving the system a defined upper bound on thermal dissipation capacity.

Dimensions:

Heatsink/water block height 82 mm
Heatsink/water block width 94 mm
Heatsink/water block depth 75 mm
Radiator size 240 mm
Radiator height 27 mm
Radiator length 277 mm
Radiator width 120 mm

The water block measures 82mm in height, 94mm in width, and 75mm in depth, giving it a relatively compact footprint on the motherboard. The 240mm radiator spans 277mm in length and 120mm in width, with a 27mm thickness that should suit most standard case radiator mounts without requiring significant clearance accommodations.

General info:

CPU socket LGA 1851, LGA 1700, LGA 1200, LGA 1150, LGA 1151, LGA 1155, AM4, AM5
Audible noise (min) 15.4 dB
Audible noise (max) 34.9 dB
weight 1200 g
warranty period 3 years

The cooler is compatible with a wide range of CPU sockets, covering Intel's LGA 1851, LGA 1700, LGA 1200, LGA 1150, LGA 1151, and LGA 1155, as well as AMD's AM4 and AM5 platforms. Audible noise ranges from 15.4 dB at its quietest to 34.9 dB under full load, and the unit weighs 1200g in total. It comes backed by a 3-year warranty.

Features:

Fan bearings Rifle bearings
has RGB lighting ✓
Thermal paste Included
Has a display ✕

The fans use rifle bearings and the unit includes RGB lighting, with thermal paste bundled in the box so no separate purchase is needed before installation. The cooler does not feature a built-in display.

Final Verdict

The Be Quiet! Light Loop 240mm is a well-rounded AIO liquid cooler that covers a broad range of current Intel and AMD platforms while keeping installation straightforward with included thermal paste and a standard radiator form factor. Its broad socket compatibility combined with RGB lighting and a slim 27mm radiator makes it a practical fit for mainstream desktop builds where case space and visual consistency matter. That said, users with thermally intensive workloads or strict noise requirements should be aware of its ceiling — both in radiator surface area and fan acoustics at full speed. For everyday desktop builds and moderate workloads, the Light Loop 240mm delivers a coherent, no-fuss liquid cooling package backed by a three-year warranty.