Description: 12V DC Brushless 40mm fan Excellent for keeping electronic components or extruder cool to prevent any damage. Indispensable to cool the print heads or engines that tend to heat through. Specification: Name: Extruder cooling fan Size: 40x40x10mm Voltage: DC 12V Current: 0.12A For: 3D printers Package Includes: 1x 3D Printer Cooling Fan