The wavelength of diode lasers passes through clear and is reflected by light colors, not allowing the energy from the laser beam to be deposited on the surface of the material. You will need to try darker material or use a different type of laser / wavelength of beam to accomplish this task.
40W CO2 Usb Laser Engraving Cutting Machine K40 Engraver Cutter 220V / 110V Cnc With Digital Display for Plywood Acrylic is it good enough for it or should I take another one
Yes, it works very well, but you still need to replace the controller to use LightBurn. (for example Mini-Gerbil $ 89, Plug and Play) An extra good venting system is also strictly necessary when you want to work primarily with acrylic.