| BASE STYLE | MEDIUM SCREW |
| BULB STYLE | A (ARBITRARY DESIGNATION) |
| BULB DESIGNATOR | A-21 |
| OVERALL LENGTH | 4.375 INCHES NOMINAL |
| BULB LIGHT TRANSMISSION CHARACTERISTIC | TRANSPARENT |
| EMITTED LIGHT CHARACTERISTIC | COLORLESS |
| FILAMENT DESIGNATION | C-11V |
| WATTAGE RATING | 60.000 WATTS |
| VOLTAGE RATING | 125.000 VOLTS MINIMUM AND |
| 130.000 VOLTS MAXIMUM |
| CURRENT RATING FOR WHICH DESIGNED | 0.462 AMPERES MINIMUM AND |
| 0.480 AMPERES MAXIMUM |
| LIGHT OUTPUT RATING | 610.000 LUMENS NOMINAL SINGLE RATING |
| RATED AVERAGE LIFE | HOURS |
| AVERAGE LIFE RATING IN HOURS | 8000.0 |
| BURNING POSITION | ANY ACCEPTABLE |
| FILAMENT HEAVY DUTY SERVICE RATING | NOT RATED |
| LIGHT CENTER LENGTH | 2.438 INCHES NOMINAL |
| SPECIAL FEATURES | WATT-MISER |
| CRITICALITY CODE JUSTIFICATION | FEAT |