Atomstack A40 Pro V2
#5 in DiodeFull review
A cheap route to serious diode cutting power for a garage or shop with good ventilation. Not for a shared living space without an enclosure.
Amazon $719.99$719.99
The Atomstack A40 Pro V2 is the better laser engraver overall, rated 3.8 to 3.8. The Atomstack A40 Pro V2 leads on features and value. The Twotrees TS2 40W wins on warranty. The Atomstack A40 Pro V2 costs $80.76 less ($719.99 vs $800.75).
Twotrees TS2 40W
#7 in DiodeFull review
A budget open frame cutter for garage makers who want high power on a big bed and can set up their own safety and ventilation.
Amazon $800.75$800.75
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Atomstack A40 Pro V2 for features (air assist vs none of the four) and value ($15 per optical watt ($719.99, 48 W) vs $20.02 per optical watt ($800.75, 40 W)).
- Choose the Twotrees TS2 40W for warranty (2-year warranty vs 1-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every diode laser engraver; a clear win is highlighted. How we rank explains each one.
| Factor weight | Atomstack A40 Pro V2 | Twotrees TS2 40W |
|---|---|---|
| Overall rating | 3.8/5 | 3.8/5 |
| Value 35% | 100 $15 per optical watt ($719.99, 48 W) | 85 $20.02 per optical watt ($800.75, 40 W) |
| Work area 15% | 96 385 x 400 mm work area | 100 450 x 410 mm work area |
| Features 30% | 25 air assist | 0 none of the four |
| Warranty 20% | 50 1-year warranty | 100 2-year warranty |
Specifications
| Atomstack A40 Pro V2 | Twotrees TS2 40W | |
|---|---|---|
| Laser | ||
| Type | Diode | Diode |
| Optical power | 48 W | 40 W |
| Work area | 385 x 400 mm | 450 x 410 mm |
| Maximum speed | 500 mm/s | 100 mm/s |
| Safety class | Class 4 | - |
| Features | ||
| Enclosed | No | No |
| Camera | No | No |
| Air assist | Yes | - |
| Warranty | 1 year | 2 years |