| Item condition | New |
| Manufacture name | Low-voltage over-pressure dual-coil lamps, railway 1820 LL |
| Brand | OSRAM |
| Categories |
Traffic signalling lamps
BA20d Light Bulbs |
| Country of origin | DE |
| Harmonized System Code | 8539 2998 00 |
| Socket | BA20d |
| With reflector | No |
| Lamp voltage | 12 V |
| Lamp power | 20 W |
| Packing level 1 | 4050300831350 |
| Packing level 2 | 4050300559315 |
| Packing level 3 | 4050300831350 |
| Model | Clear |
| Suitable for traffic lights | No |
| Suitable for variable road signs | No |
| Suitable for rail traffic | Yes |
| Halogen | No |
| Number of filaments | 2 |
| Suitable for matrix information boards | No |
Low-voltage over-pressure dual-coil lamps, railway. Product features: Dual-coil lamps for higher operation safety of the signalling system. Product benefits: Second filament takes over when the main filament fails. Various wattages matched to specific needs of the relevant optical systems. Areas of application: Railway traffic signalling systems.