| Item condition | New |
| Manufacture name | Automotive Signal Lamp 21/5W 12V BAY15D 7528-2BL (2x1) |
| Brand | OSRAM |
| Categories |
Car lights
Light Bulbs |
| Packing level 1 | 4062172396448 |
| Packing level 2 | 4062172396455 |
Multi-function lamp for vehicle lighting—you'd usually find it handling dual tasks like brake/tail lights. Works in systems where BAY15D socket's the standard, fits tightly, provides solid contact. Bulb runs on 12V DC power supply. Rated wattage split: 21W high intensity (brake signal), 5W low intensity (tail light). Double filament setup, quick light-on response time typical of incandescent design. Dimensions match BAY15D base form factor; short cylinder glass. Two offset bayonet pins lock bulb into holder—ensure proper alignment during installation or risk faulty operation. Raw tech notes: OSRAM brand, Voltage: 12V, Wattages: 21/5W dual filament, Bulb Type: Incandescent clear glass, Base type: BAY15D pin offset format, Pack size–10XBLI2 bundle packaging specified, Part number identification–7528-2BL confirmed evident from print direct on base rim markings visible upon inspection clarity range available tests completion ensured final case codes validated end unit reliability robust.