UV Laser Marker for Glass: Based on "2024 Model LabelMark-UV Marking Software" Default Speed: 300mm/s Frequency: 30KHz Q Pulse Width: 1us Hatch Line Distance: 0.03mm For all kinds of glass. But exclude tempered glass, cannot mark on tempered glass. (Note: Pulse Width Reverse (ticked) in Laser Control, if NOT ticked, use 33us as Q Pulse Width)