| External Diameter: | 314 mm | 
| Internal Diameter: | 140 mm | 
| Height: | 231 mm | 
| Lamp / Voltage: | TC - T/E 57W HIT 250 W  | 
                  
| Model | Order Number | Trade Number | Technology | 
| DC320B | DC320B - 100 | ECO50 | 99.50% - Standard brightening | 
| DC320B - 101 | ALPAK | 99.50% - Special Metalco's brightening | |
| DC320B - 105 | ANOBRIGHT | 99.90% - New patented Metalco's brightening process |