eCobalt- 20W LMT Laser Marking System: Complete system with PC & Software for all types of Bar, QR and Data matrix codes, designs/company logos and any style of windows text or graphics. Everything you need to get started! For the marking of Carbide, Steel, Stainless Steel, Plastic, Rubbers,and many other materials. 20 Watt Ytterbium Pulsed Fiber Laser 1064 Wavelength Digital Scan Head Electrical Requirements 110 Volts (15 Amps ) Fume Extraction Requirements: Minimum recommended airflow/static pressure - 223cfm/96mbar at machine Laptop PC: Minimum 120 GB Hard Drive and minimum 2 GB Ram Red alignment pointer for positioning mark prior to marking Manual Z Axis is supplied for focal positioning.