This is a LightBurn Core software license key for users with GCode controllers (DIY / hobby). It unlocks the trial version of the software for permanent commercial use, and allows installing on up to three computers, PC or Mac. The key will be emailed to you (this may take up to 24 hours). You can read more about the license here. Not sure which version to buy? Click here. See the Download/Trial Page for software downloads. LightBurn Core supports Cohesion3D, Smoothieware, Grbl, Marlin, and Grbl-LPC based controllers. (Note, if you have an Emblaser from Darkly Labs, please purchase your LightBurn license directly from them) Please take advantage of our free trial and test with your hardware to be sure it works for you before you purchase.