Miniature filament lamp for lighting fixtures inside ground transportation vehicles and planes.
Annotation breakdown:
SM – miniature lamp
28 – rated voltage
2,8 – rated power
Technical parameters:
| Rated voltage, V | 28 |
| Rated power, W | 2,8 |
| Luminous flux, lm | 15,3 |
| Average lifetime, not less than, h | 150 |
| Light color | white |
| Dimensions, mm (diameter x length) | 11 x 30 |
