| EMITTED LIGHT CHARACTERISTIC | WHITE |
| AVERAGE LIFE RATING IN HOURS | 5000.0 |
| BASE STYLE | TELEPHONE SLIDE NUMBER ONE |
| BULB DESIGNATOR | T-2 |
| BULB LIGHT TRANSMISSION CHARACTERISTIC | TRANSPARENT |
| BULB STYLE | T (TUBULAR) |
| CURRENT RATING FOR WHICH DESIGNED | 0.045 AMPERES MINIMUM AND 0.060 AMPERES MAXIMUM |
| FILAMENT DESIGNATION | C-2F |
| FILAMENT HEAVY DUTY SERVICE RATING | NOT RATED |
| LIGHT OUTPUT RATING | 1.100 SPHERICAL CANDLEPOWER NOMINAL SECOND RATING |
| LIGHT OUTPUT RATING | 2.200 END FOOTCANDLES NOMINAL FIRST RATING |
| OVERALL LENGTH | 1.688 INCHES MAXIMUM |
| RATED AVERAGE LIFE | HOURS |
| VOLTAGE RATING | 55.000 VOLTS NOMINAL |
| WATTAGE RATING | 2.475 WATTS AND 3.300 WATTS |