Acmer · Diode laser
Acmer K1 12W



Small enclosed diode laser with up to 12 W and a 15 x 15 cm area. Inexpensive and compact, but with many manufacturer details left open.
Ideal for: Hobbyists who want to do small engraving jobs at home and have hardly any space.
Price in the manufacturer's shop€252, 12 W2.5 W from €173As of 26 Oct 2026, can change dailyThere is no manufacturer's shop price for your region, the EU price is shown.
Pros and cons
Pros
- enclosed small device for around €252
- only 2.4 kg and 29 x 27 cm footprint
- according to users, pauses when the lid is opened or tilted
Cons
- small work area of 15 x 15 cm
- no manufacturer information on extraction, Air Assist and cutting capacity
- Laser class 1 documented only as a marketing claim
Specs
| Price range | under €500 |
|---|---|
| Price in the manufacturer's shop | €252, 12 W; 2.5 W from €173 (As of 26 Oct 2026) |
| Laser type | Diode laser |
| Laser source | Diode 12 W (wavelength: not specified by the manufacturer); also as 2.5, 3.5 and 7 W, modules interchangeable |
| Power (optical, main source) | 12 W |
| Work area | 150 × 150 mm |
| Dimensions | 286 × 273 × 190 mm |
| Weight | 2.4 kg |
| Construction type | Gantry |
| Enclosure | enclosed |
| Laser class | Class 1 (according to the manufacturer) |
| Speed (max.) | 167 mm/s (10,000 mm/min) |
| Cutting according to the manufacturer | 12 W module: 12 mm plywood, 15 mm paulownia, black acrylic 8 or 10 mm (manufacturer images contradictory); number of passes not specified |
| Air Assist | not specified by the manufacturer |
| Camera | no |
| Fume extraction | Built-in extraction fan; filter not specified |
| Rotary attachment | not specified by the manufacturer |
| Software | Acmer Studio, AcmerTool, LightBurn, LaserGRBL |
| Connectivity | USB |
| Materials (according to the manufacturer) | Wood, Plywood, Paper, Leather, Acrylic (opaque), Anodised metal |
Source: Manufacturer or retailer specifications, As of 10/2026. Cutting figures are manufacturer values under ideal conditions.
More lasers from Acmer
Acmer P2 33W
Hobby makers with their own workshop or a way to vent fumes who want a lot of diode power for little money.
Acmer P3 48W
Beginners looking for an enclosed diode laser with camera for living spaces who want to spend little.
Acmer S2 Pro 48W
Hobby makers with a workshop who want a lot of diode power on a large area at a low price and accept data gaps.
Acmer P3 10W Diode + 2W IR
Beginners who want to engrave wood and leather and also mark metal without buying two devices.
Acmer GE1
Makers who want to engrave small parts quickly and mark metal and work with Windows or Android.
Acmer PM 60W MOPA
Businesses and experienced makers who mark a lot of metal and organise the enclosure, fume extraction and laser protection themselves.
Acmer SM 60W MOPA
Small businesses with their own laser workshop who want to mark metal parts in series.
Acmer P1 S Pro 20W
Beginners on a small budget with a well-ventilated workspace.
Acmer P1 10W
Beginners who mainly engrave and only cut thin material.
Acmer S2 20W
Beginners with little space who mainly engrave.
Acmer S1 6W
Beginners who want to try laser engraving on small parts for very little money.