OMTech Polar Lite 55W
#1 in CO2Full review
A good first CO2 laser for makers who want a 500 x 300 mm bed, autofocus and built in cooling at about $2,000. Skip it if you rely on a camera to place designs.
Amazon $2,099.99$2,099.99
The OMTech Polar Lite 55W rates 4.3 among CO2 laser engravers; the Atomstack A40 Pro V2 rates 3.8 among diode ones. The Atomstack A40 Pro V2 costs $1,380 less ($719.99 vs $2,099.99).
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
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.
Scores side by side
These two sit in different laser type classes (CO2 and diode), and each is scored against the reference points for its own class, so a rating says how well each does among its own laser type peers. How we rank explains each factor.
| Factor weight | OMTech Polar Lite 55W | Atomstack A40 Pro V2 |
|---|---|---|
| Overall rating | 4.3/5 | 3.8/5 |
| Value 35% | 85 $38.18 per optical watt ($2,099.99, 55 W) | 100 $15 per optical watt ($719.99, 48 W) |
| Work area 15% | 50 500 x 300 mm work area | 96 385 x 400 mm work area |
| Features 30% | 75 enclosed, air assist, autofocus | 25 air assist |
| Warranty 20% | 100 2-year warranty | 50 1-year warranty |
Specifications
| OMTech Polar Lite 55W | Atomstack A40 Pro V2 | |
|---|---|---|
| Laser | ||
| Type | CO2 | Diode |
| Optical power | 55 W | 48 W |
| Work area | 500 x 300 mm | 385 x 400 mm |
| Maximum speed | 500 mm/s | 500 mm/s |
| Safety class | - | Class 4 |
| Features | ||
| Enclosed | Yes | No |
| Camera | - | No |
| Air assist | Yes | Yes |
| Autofocus | Yes | - |
| Weight | 90.4 lb | - |
| Warranty | 2 years | 1 year |
| Released | 2025-05-19 | - |