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  3. S2 7W vs L8 20W

Acmer S2 7W vs Genmitsu L8 20W

What S2 7W does better (1) and where L8 20W wins (7) — every spec side by side.

Acmer S2 7W
Acmer · 2025S2 7W
5.4Score
1 advantage≈ US$180
vs
Genmitsu L8 20W
Genmitsu · 2023L8 20W
9.1Score
7 advantages≈ US$660
Higher score
4.4Power & cutting7.7
3.5Speed8.9
8.7Precision4.8
4.8Work area7.7
3.2Safety8.3
5.7Features & ease of use9.1
Dimensions

Size comparison

S2 7WL8 20W
490 × 195500715 × 261621
S2 7WL8 20WDifference
Height195 mm261 mm−66 mm
Width490 mm715 mm−225 mm
Depth500 mm621 mm−121 mm

Drawn to the same scale from the official dimensions (front and side).

Why is S2 7W better than L8 20W?

  1. Laser spot size0.06 mm vs 0.13 mm2.2×

Why is L8 20W better than S2 7W?

  1. Laser output power7 W vs 20 W2.9×
  2. Max engraving / travel speed167 mm/s vs 667 mm/s4×
  3. Work area (surface)900 cm² vs 1,600 cm²+78%
  4. Enclosed (fully covered)No · S2 7W: Yes
  5. Built-in cameraNo · S2 7W: Yes
  6. Work area width (X)300 mm vs 400 mm+33%
  7. Work area depth (Y)300 mm vs 400 mm+33%
Specifications

Side by side

Acmer S2 7WAcmer S2 7W≈ US$1805.4
Genmitsu L8 20WGenmitsu L8 20W≈ US$6609.1
General
Laser sourcesBlue diode (≈455 nm)Blue diode (≈455 nm)
Motion systemGantry (XY rails)Gantry (XY rails)
Two laser sourcesNoNo
Wavelength—455 nm
Laser power
Laser output power7 W20 W
Work area
Work area300 × 300 mm400 × 400 mm
Work area width (X)300 mm400 mm
Work area depth (Y)300 mm400 mm
Work area (surface)900 cm²1,600 cm²
Speed & cutting
Max engraving / travel speed167 mm/s667 mm/s
Precision
Laser spot size0.06 mm0.13 mm
Positioning accuracy—0.01 mm
Safety
Enclosed (fully covered)NoYes
Laser safety class—Class 1 (eye-safe, enclosed)
Flame / fire detectionNoNo
Features
Air assistYesYes
Built-in cameraNoYes
Autofocus / auto heightNoNo
Rotary attachment supportYesYes
Connectivity & software
Connections—Wi-Fi
Wi-Fi—Yes
USB—Yes
Compatible softwareLightBurnLightBurn
LightBurn compatibleYesYes
File formats—JPG, BMP, PNG, GIF, DXF, PLT, HPGL
Size & power
Width490 mm715 mm
Depth500 mm621 mm
Height195 mm261 mm
Rated power consumption—240 W
To compare: 0up to 4 models
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