... 800mm 2)Laser Power:60W (80W ,100w,150w ,180w for option) 3)Working Voltage:AC220V Laser machine DW-1280 ... detached CO2 laser tubeLaser-power60W (80W ,100w,150w ,180w for option) Cooling ModeCirculating-water-cooling Power Adjustment0-100% controlling, ... Aftersales Service:Laser tube 2400 hours working timeComprehensive guarantee for half year24-hour technical support by email or callingUser-friendly ...