| EMITTED LIGHT CHARACTERISTIC | COLORLESS |
| AVERAGE LIFE RATING IN HOURS | 8000.0 |
| BASE STYLE | MEDIUM SCREW |
| BULB LIGHT TRANSMISSION CHARACTERISTIC | TRANSPARENT |
| BULB STYLE | A (ARBITRARY DESIGNATION) |
| BULB DESIGNATOR | A-21 |
| CRITICALITY CODE JUSTIFICATION | FEAT |
| CURRENT RATING FOR WHICH DESIGNED | 0.432 AMPERES MINIMUM AND 0.450 AMPERES MAXIMUM |
| FILAMENT DESIGNATION | C-11V |
| FILAMENT HEAVY DUTY SERVICE RATING | NOT RATED |
| LIGHT CENTER LENGTH | 2.438 INCHES NOMINAL |
| LIGHT OUTPUT RATING | 530.000 LUMENS NOMINAL SINGLE RATING |
| OVERALL LENGTH | 4.375 INCHES NOMINAL |
| RATED AVERAGE LIFE | HOURS |
| SPECIAL FEATURES | WATT-MISER; TRAFFIC SIGNAL |
| VOLTAGE RATING | 120.000 VOLTS MINIMUM AND 125.000 VOLTS MAXIMUM |
| WATTAGE RATING | 54.000 WATTS |