LU2-2 Electric Power: 7W, Optical Power: 1,000-1,600mW More suitable for novice engraving.
Both long and short focal lengths can be cut and engraved.
However, the LU2-4 LF telephoto has a longer beam waist and higher energy density.
On the basis of balance, it is more inclined to cutting, and the maximum cutting is 9MM plywood (LF gas nozzle is equipped, the cut surface is smooth, and there will be no black edges)The focus of the LU2-4 SF short focus is smaller, and on a balanced basis, it is more inclined to engraving, especially hard materials such as stainless steel.
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