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Small square 40mm blower fan with two wires

Lemincrash

Lemincrash BF4010L12S 12V 0.08A 40mm laptop cooling pad

SKU CH-NZN8-NP1DZ MPN BF4010L12S

Compact 40 mm blower fan runs at 12 V and 0.08 A to cool laptop internals or 3D-printer hotends

  • Accessory categoryCooler
  • Main functionNotebook
  • Key featuresNew
  • In the boxCPU Cooling fan
  • 12 V DC power with 0.08 A low draw
  • 40 mm square turbo blower design
  • 10 mm slim profile fits tight spaces
  • Two-pin interface for simple wiring
  • Targeted airflow cools hotend or notebook

Compact 40 mm blower fan for tight spaces

The Lemincrash BF4010L12S is a 40 mm by 40 mm by 10 mm blower-style fan that runs on 12 V DC and draws 0.08 A through a two-pin connector. It is designed to push air through narrow channels in laptop cooling pads or 3D printer hot-end assemblies such as J-head and Reprap setups.

Suited for low-profile cooling upgrades

This fan fits builders who need a slim 4010 form factor to replace a worn cooler in a laptop pad or to direct focused airflow across a small heatsink. It is not for users who require high static pressure for large radiators, silent operation at low RPM, or PWM speed control via a four-pin header.

Handles targeted component cooling

At its rated voltage and current the fan provides enough airflow to keep a single hot-end or notebook heat pipe within safe temperatures during typical loads. It runs out of headroom when asked to cool multi-core processors under sustained full load or to move air through restrictive ducting longer than a few centimetres.

How it compares

Measured against everything we stock in Laptop Cooling Stands & Fans, at today’s prices. Recalculated every night.

Price $10.99
Cheaper than about 85% of the 6,190 comparable items (median $20.99).

Specifications

Product
Brand nameLemincrash
Model nameBF4010L12S
Accessory categoryCooler
In the box
In the boxCPU Cooling fan
More details
Main functionNotebook

Questions about this item

What power source must I provide for the 12V 0.08A fan to run?

You need a 12V DC supply that can deliver at least 0.08A and a matching 2-pin connector for the fan's power lines.

Will the 40mm blower fit alongside the existing heatsink on my J-head hotend?

The fan measures 40×40×10mm and is designed for J-head hotends on RepRap printers, so it mounts directly onto that style of heatsink.

How can I confirm the BF4010L12S is spinning correctly after installation?

Apply 12V power; the blower should start immediately and produce a steady airflow from the outlet — no spin means the supply or wiring needs checking.

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