Specifications
| Type | Incandescent bulb | [1.1, 1.2, 1.3] |
| Voltage | 12 volts | [1.1, 1.2, 1.3] |
| Filament Count | Single | [1.1, 1.2, 1.3] |
| Base Type | BA15s bayonet | A single-contact base with even pins [1.1, 1.5, 1.23] |
| Common Product Numbers | 1156, 207, R5W, R10W | Varies by manufacturer and wattage [1.1, 1.2, 1.14] |
| Primary Use | Automotive | Commonly used for taillights, indicators, and marker lights [1.1] |