What is Laser power in W?

Laser power in W is the optical output of the strongest laser in a maker's range, and it decides how fast the beam cuts or engraves and how thick a material it can take. More power handles tougher stock and deeper cuts, but it also raises the price, the power draw and the need for cooling and extraction. ACMER's fiber marking machine leads here at 100 W and AtomStack follows with 120 W. Bambu Lab lists 55 W, while Creality and Creality sit at 60 W and 60 W. Match power to the material you actually cut.