Toyota GR Corolla Brake Bulb Size

Additional Notes

• The 194 bulb is the most prominent type in these specifications, serving as the center high mount stop light size for the Toyota GR Corolla across the 2023-2024 model years.
• The 194 bulb follows the ANSI standard applicable in the US and Canada, meaning it conforms to a regulated specification for electrical and physical compatibility rather than a manufacturer-specific design.
• It belongs to the T10 miniature wedge family, a form factor characterized by a wedge-shaped base that seats directly into a socket without a separate metal cap or pins.
• The bulb operates at 12 volts and draws 3.78 watts, placing it in the low-wattage range typical of indicator and auxiliary lighting rather than primary illumination.
• Because the 194 is an ANSI-standardized T10 wedge, it is physically interchangeable with other bulbs sharing the same base type, though electrical compatibility depends on matching voltage and wattage ratings to the socket requirements.