Aircraft filament lamp for lighting fixtures inside ground transportation vehicles and planes.
Annotation breakdown:
SM – aircraft lamp
28 – rated voltage
4.8 – rated power
Technical parameters:
| Rated voltage, V | 28 |
| Rated power, W | 4.8 |
| Luminous flux, lm | 32 |
| Average lifetime, not less than, h | 150 |
| Lamp cap type | b95.14 |
| Lamp cap design | bayonet |
| Light color | white |
| Dimensions, mm (diameter x length) | 11 x 30 |
Lamp can endure diminished air pressure and relative humidity up to 98%
