50W CO2 Laser Tube for Laser Engraver Cutting MachineNote: Polar is not suitable for this laser tube. Precision Engraving: Our CO2 Laser Tubes produce stable laser beams for more precise markings on a wide variety of materials. Power: Maximum Power: 50W Beam Diameter: 2. 5mm Triggering Voltage: 22 KV Operating Voltage: 16 KV Optimal Operating Current: 13 15 mA Power Stability: 5% Wavelength: 10,640 nm Cut up to 1 2" thick plywood and acrylic plexiglass Lifetime: 50W Hermetic CO2 Glass Tube with an