21 Oct 2026Laser & CNC machines 406Brands 30Comparisons 1,281
PROCESSINGTALKlaser cutters, engravers & CNC routers
TrendingASCARVA 3S ▲Kortek 5W ▲K2 Pro 55W ▲GPro Vision Split MOPA 60WMaster 50WS2 Pro 36WPM 60WPRONAX ForgeHydra 9 Gen2 38W
  1. Processing Talk
  2. Compare
  3. Alpha MK2 20W vs MK3 15W

Algolaser Alpha MK2 20W vs Algolaser MK3 15W

What Alpha MK2 20W does better (1) and where MK3 15W wins (0) — every spec side by side.

Algolaser Alpha MK2 20W
Algolaser · 2024Alpha MK2 20W
7.4Score
1 advantage≈ US$600
Higher score
vs
Algolaser MK3 15W
Algolaser · 2026MK3 15W
7.4Score
0 advantages≈ US$310
7.7Power & cutting7.0
4.9Safety4.9
8.7Features & ease of use8.2

Why is Alpha MK2 20W better than MK3 15W?

  1. Laser output power20 W vs 15 W+33%

Why is MK3 15W better than Alpha MK2 20W?

MK3 15W has no measurable advantages in this pair.

Specifications

Side by side

Algolaser MK3 15WAlgolaser MK3 15W≈ US$3107.4
General
Laser sourcesBlue diode (≈455 nm)Blue diode (≈455 nm)
Motion systemGantry (XY rails)Gantry (XY rails)
Two laser sourcesNoNo
Wavelength450 nm—
Laser power
Laser output power20 W15 W
Work area
Work area400 × 410 mm—
Work area width (X)400 mm—
Work area depth (Y)410 mm—
Work area (surface)1,640 cm²—
Work-area extension kitYesYes
Speed & cutting
Max engraving / travel speed500 mm/s—
Precision
Laser spot size0.16 mm—
Safety
Enclosed (fully covered)NoNo
Flame / fire detectionNoNo
Built-in fume filter / purifierYesYes
Features
Air assistYesYes
Built-in cameraYesYes
Autofocus / auto heightNoNo
Rotary attachment supportYesYes
Touchscreen / control panel—Yes
Connectivity & software
Compatible softwareLightBurn, LaserGRBLLightBurn
LightBurn compatibleYesYes
Size & power
Width650 mm—
Depth730 mm—
Height240 mm—
Weight6.5 kg—
To compare: 0up to 4 models
Compare