Specification:
| Model | QL-4 | QL-4A |
| Specification | Four-tray Two-layer | Four-tray Two-layer |
| Voltage (V) |
220 | 220 |
| Net Weight (kg) |
210 | 330 |
| Tray Size (mm) |
600×400 | 600×400 |
| Chamber Size (mm) |
865x655x225 | 865x655x225 |
| Dimensions (mm) |
1355x800x1410 | 1355x800x1410 |
| Temperature Range (℃) |
0-300 | 0-300 |
