Product name:ZuRong co2 laser tube 80w 150w for cnc laser cutter and engraver Material:Optical Glass Lifespan:10000 hours warranty:six months Diameter:80mm Length:1250mm.1450mm,1650mm,1850mm,2000m Catalyst:YES laser power:60w.70W.80W.90W.100-170W Function:Laser Cutting and Engraving