- Processing Talk
- Compare
- PHECDA 20W vs B1 30W
Elegoo PHECDA 20W vs Longer B1 30W
What PHECDA 20W does better (3) and where B1 30W wins (6) — every spec side by side.
vs
6.4Power & cutting8.4
6.6Speed8.0
8.7Precision4.4
7.7Work area8.9
5.8Safety3.2
6.4Features & ease of use3.5
Why is PHECDA 20W better than B1 30W?
- Laser spot size0.06 mm vs 0.1 mm+67%
- Air assistYes · B1 30W: No
- Wi-FiYes · B1 30W: No
Why is B1 30W better than PHECDA 20W?
- Max cutting depth – wood / plywood (one pass)8 mm vs 25 mm3.1×
- Laser output power20 W vs 30 W+50%
- Work area (surface)1,600 cm² vs 1,980 cm²+24%
- Max engraving / travel speed417 mm/s vs 600 mm/s+44%
- Work area width (X)400 mm vs 450 mm+12%
- Work area depth (Y)400 mm vs 440 mm+10%
Specifications
Side by side
| General | ||
| Laser sources | Blue diode (≈455 nm) | Blue diode (≈455 nm) |
| Motion system | Gantry (XY rails) | Gantry (XY rails) |
| Two laser sources | No | No |
| Wavelength | 455 nm | — |
| Laser power | ||
| Laser output power | 20 W | 30 W |
| Work area | ||
| Work area | 400 × 400 mm | 450 × 440 mm |
| Work area width (X) | 400 mm | 450 mm |
| Work area depth (Y) | 400 mm | 440 mm |
| Work area (surface) | 1,600 cm² | 1,980 cm² |
| Work-area extension kit | — | Yes |
| Speed & cutting | ||
| Max engraving / travel speed | 417 mm/s | 600 mm/s |
| Max cutting depth – wood / plywood (one pass) | 8 mm | 25 mm |
| Precision | ||
| Laser spot size | 0.06 mm | 0.1 mm |
| Safety | ||
| Enclosed (fully covered) | No | No |
| Flame / fire detection | No | No |
| Tilt / movement sensor | Yes | — |
| Built-in fume filter / purifier | Yes | — |
| Exhaust fan | Yes | — |
| Features | ||
| Air assist | Yes | No |
| Built-in camera | No | No |
| Autofocus / auto height | No | No |
| Rotary attachment support | Yes | Yes |
| Touchscreen / control panel | Yes | Yes |
| Connectivity & software | ||
| Connections | USB, SD / USB drive | USB, SD / USB drive |
| Wi-Fi | Yes | No |
| USB | Yes | Yes |
| SD / TF card | Yes | Yes |
| Phone app control | Yes | Yes |
| Compatible software | LightBurn, LaserGRBL | LightBurn, LaserGRBL |
| LightBurn compatible | Yes | Yes |
| File formats | SVG, DXF, JPG, PNG, BMP, TIF | — |
| Size & power | ||
| Width | 673 mm | — |
| Depth | 660 mm | — |
| Height | 190 mm | — |
| Weight | 6.5 kg | — |
| Rated power consumption | 55 W | — |
