Laser Engraving and Cutting

• What kind of materials does the laser engraving support?
• What is the work area of laser engraving?
• What is the power of the laser?
• What is the wavelength of the laser?
• What is the safety class of the 200mW laser?
• What is the dot size of the laser?
• Does it require a ventilation system to vent the fume during the laser engraving?