D12 x F50.8mm Free Shipping US Focus Lens Diameter 12 mm Focal Length 50.8 mm For Co2 Laser Cutting And Engraving Machine Thickness 1.6 mm
Material: USA Laser Grade Znse
Diameter:12mm
Focal Length: 50.8mm/2.0“
Power: up to 150w
Transmissive:99.9%
Lifetime:5-12 month(Accordingly)

D20 x F127mm Free Shipping US Focus Lens Diameter 19.05mm Focal Length 127mm For Co2 Laser Cutting And Engraving Machine Thickness 2.0 mm
Material: USA Laser Grade Znse
Diameter:19.05mm
Focal Length: 127mm/5.0“
Power: up to 150w
Transmissive:99.9%
Lifetime:5-12 month(Accordingly)