https://monportlaser.com/collections/desktop-laser-engraver/products/40w... "There are some differences between the working principles of the two. In the CO2 laser machine, cutting and engraving are completed by using electrically stimulated CO2 and other gases such as nitrogen and helium. Laser diodes usually use semiconductors made of aluminum or gallium arsenide alloys. The current is supplied through the diode, causing electrons to flow through the p-n junction. If you are a diode engraver who is used to Lightburn and want to enter the field of carbon dioxide engravers, but think that buying a laser engraver with a power of more than 60W may not take into account the current engraving needs, Monport K40 Lightburn engraver can completely help you overcome this stage.
If you are a DIY enthusiast, you can choose a relatively cheaper laser engraver, such as Monport k40 laser cutter. It is affordable, friendly to beginner, and easy to use and portable. Monport k40 laser cutter does not require complicated installation, just plug and play. As long as you spend a little time on the parameter settings, you can also make a good work."