Beam Shape: Dot-shaped fixed focus(It comes with a Focusing column 40mm , then when you make the laser work, please confirm the distance from lens to material is 40mm)
The lifetime is 20000 hours.(Due to the different engraving materials, the smoke produced by engraving will adhere to the lens. To avoid affecting the engraving effect, it is recommended to use a fan)
Warranty: 12 month( Please contact us if you have any problem, we response for our product !)
