Working voltage: DC 24VSize: 40x40x10mm / 1.7x1.7x0.39 inch;, easy to installThe fluid designed multi fan blades, equipped with advanced baffles, have high heat dissipation efficiency, allowing your machine to no longer block the filament due to overheatingSmall cooling fans suitable for 3D printer nozzle settings, such as Ender 3, Ender 3X, Ender 3 Pro, Ender 3V2, Ender 5 series, Ender 6 series; It is also suitable for any place and electronic equipment that requires cooling.Package includes: DC 24V Extruder Hot End fan and DC 24V Turbo fan