xTool F1 Laser Engraver Portable Dual Laser Cutter Review From Aliexpress

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xTool F1 Laser Engraver Portable Dual Laser Cutter With IR + Diode Laser Engraving Cutting Machine Tools DIY Fiber Mini Printer Review Aliexpress.
Compared to the counterpart from other brands, what are the merits of F1?
-Overwhelming speed: 4000 mm/s! Top one among all the glavo laser machines! We made it because we adopted the industrial grade galvo system, which guarantees precise and accurate engraving even at extreme speed. 5 secs, make a metal business card; 1 sec, make a paper card; 6 secs, make a leatherette patch.
Super high engraving accuracy: 0.00199mm
The world's first dual laser in a machine! No 2 laser heads.
Safe and clean processing: Compatible with Desktop Smoke Purifier and RA2 Pro for xTool F1.
The galvanometer sounds cool! What's that?
Dual-galvanometer (shortened to galvo) lasers use two precision mirror galvanometers to direct the beam at any angle within the marking window of the laser. This allows the beam to move very quickly. Galvo is often used in industrial batch processing.
How do the dual lasers work in F1?
-With both 455nm blue laser and 1064nm infrared fiber laser in a machine, it emits diode laser or infrared laser SOLELY (not at the same time). Laser change can be done on xTool Creative Space.