Official Creality K1 Nozzle Kits, 5PCS Ender 3 V3 KE 3D Printer Hardened Steel Nozzles 0.4mm, High Speed Printing and High Flow Extruder Nozzles for Creality K1 K1 Max CR M4 CR 10 SE auspowers_batchfive & Audio Video configurations and range B0CQJFK5NH & Audio Video configurations and range from 1 Specifications: Input voltage range: DC6V 60V (the input voltage must be the same as the rated voltage of the motor) Output voltage: linear with load Output current: 0A 30A Direct Current: 20A Speed range: 0% to 100% Regulation method: potentiometer Type of regulation: regulation of the current Control frequency: 15KHz Type of wiring: screw terminal Package includes: 1 x speed controller Note: Please allow a small size error due to manual measurement no burr on the orifice makes the feeding of the filament smoother and no leakage Wide Compatibility The 3D Printer Hardened Steel Nozzles is suitable for most FDM materials such as PLA